Hewlett-Packard Development Company, L.P.

United States of America

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B41J 2/175 - Ink supply systems 1,659
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1.

LOGIC CIRCUITRY COMMUNICATION CHANNELS

      
Application Number 19181294
Status Pending
Filing Date 2025-04-16
First Publication Date 2026-06-11
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Panshin, Stephen D.
  • Ward, Jefferson P.
  • Michel, Kyle L.
  • Peeters, Michael

Abstract

A logic circuit includes an interface to communicate with a host, a processor, and a memory. The memory stores instructions that when executed by the processor cause the processor to, in response to a first start session command without having previously derived a shared key with the host, communicate with the host through a pairing channel where communications are authenticated using a session key derived from a pairing base key, to derive the shared key. The memory stores further instructions that when executed by the processor cause the processor to, in response to the first start session command and after having derived the shared key, communicate with the host through a nominal channel where communications are authenticated using a session key derived from the shared key.

IPC Classes  ?

2.

CONVEYING NOZZLE WITH PIVOT JOINT

      
Application Number 18703999
Status Pending
Filing Date 2022-05-06
First Publication Date 2026-06-04
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Hori, Satoru
  • Nakajima, Kensuke

Abstract

An image forming apparatus includes a housing to accommodate toner, a conveying nozzle having an inlet to receive the toner from the housing and an outlet to discharge the toner, and a bracket to couple the inlet of the conveying nozzle with an opening of the housing. The bracket forms a pivot joint disposed adjacent to the inlet to impart a rotational movement of the conveying nozzle around the pivot joint.

IPC Classes  ?

  • G03G 21/12 - Toner waste containers
  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 21/10 - Collecting or recycling waste developer
  • G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements

3.

GENERATING IMAGES

      
Application Number 19125225
Status Pending
Filing Date 2022-10-31
First Publication Date 2026-06-04
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Torrents Barrena, Jordina
  • Khaitan, Rohan
  • Sanroma Garrit, Jordi

Abstract

In an example, a method may include by processing circuitry identifying, in a first digital image, a first line section and determining a perimeter region around the first line section. It may be determined if a second line section has an end point within the perimeter region, and it may further be determined if the angle of the second line section is within a threshold of the angle of the first line section. When the second line section has an end point within the perimeter region and the angle of the second line section is within a threshold of the angle of the first line section, a second digital image may be generated having a line based on the first line section and the second line section.

IPC Classes  ?

4.

Computer

      
Application Number 29875951
Grant Number D1128666
Status In Force
Filing Date 2023-05-12
First Publication Date 2026-06-02
Grant Date 2026-06-02
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Wong, Glenn A.
  • Massaro, Kevin L.
  • Yoon, Daniel Young
  • Pennington, Jr., John William
  • Carroll, Benjamin
  • Henley, Ben
  • Hoggarth, Marcus

5.

COVERAGE CLASS SETUP

      
Application Number 19121544
Status Pending
Filing Date 2023-04-18
First Publication Date 2026-05-28
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Lim, Mokhwa
  • Park, Sunyoung

Abstract

A method can include receiving an image and acquiring coverage information regarding the image by calculating, for the image, a mono coverage value, a color coverage value, or both. The method can include generating, based on the coverage information, a coverage class and determining, based on the generated coverage class, a coverage class of a printout.

IPC Classes  ?

  • H04N 1/34 - Circuits or arrangements for control or supervision between transmitter and receiver for coin-freed systems
  • H04N 1/00 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmissionDetails thereof

6.

THERMAL CELL LYSIS CHAMBER WITH LYSIS CONTROL CIRCUITRY

      
Application Number 19454960
Status Pending
Filing Date 2026-01-21
First Publication Date 2026-05-28
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Govyadinov, Alexander
  • Shkolnikov, Viktor

Abstract

An example apparatus comprises a thermal cell lysis chamber, including a substrate and a lid coupled to the substrate to form a microfluidic channel therethrough. The apparatus includes cell detection element to detect presence of a cell within the microfluidic channel and to detect lysis of the cell. The apparatus also includes a thermal lysing element disposed in the lid to apply heat to a cell detected by the cell detection element, and lysis control circuitry. The lysis control circuitry is to regulate a temperature applied by the thermal lysing element, based on detection by the cell detection element of a cell within the microfluidic channel and based on detection by the cell detection element of a lysis event, and record the temperature applied by the thermal lysing element at which the lysis event occurred.

IPC Classes  ?

  • C12M 1/00 - Apparatus for enzymology or microbiology
  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

7.

COMMUNICATION DEVICE ACTIVATIONS

      
Application Number 19123170
Status Pending
Filing Date 2022-10-27
First Publication Date 2026-05-21
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Da Fonte Lopes Da Silva, Andre
  • Ozaki, Carol
  • Lagnado, Isaac

Abstract

In some examples, the disclosure describes a device that includes a device that includes a processor to: determine when the device has moved from a first location to a second location based on data received from the motion sensor device, activate the receiver device to identify a first signal type in response to the device moving from the first location to the second location, receive a beacon of the first signal type at the receiver device, activate the communication device to identify a second signal type in response to receiving the beacon at the receiver device, receive a signal of the second signal type, and establish a communication session with a transmitting device of the signal based on information from the signal.

IPC Classes  ?

  • H04W 4/029 - Location-based management or tracking services
  • H04L 65/1069 - Session establishment or de-establishment
  • H04L 67/52 - Network services specially adapted for the location of the user terminal
  • H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

8.

SCALING LASER PROJECTED USER INTERFACES

      
Application Number 19450692
Status Pending
Filing Date 2026-01-15
First Publication Date 2026-05-21
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Kocienda, Kenneth Luke

Abstract

In an example method, a wearable computing device obtains obtain sensor data from one or more sensors, and detects a trigger event based on the sensor data. The trigger event includes a user of the wearable computing device moving an open palm of the user’s hand towards the user’s face. In response to detecting the trigger event, the wearable computing device obtains a spoken input from the user using or more microphones, and performs one or more operations in accordance with the spoken input.

IPC Classes  ?

  • G06F 3/0487 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
  • G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting

9.

COMPUTING DEVICES WITH LOCKING CABLES

      
Application Number 18952125
Status Pending
Filing Date 2024-11-19
First Publication Date 2026-05-21
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Moon, Hyunmin
  • Cebe, Chrome Manley
  • Huang, Kuochih
  • Nguyen, Cuong-Ted

Abstract

A computing device may include a casing having an aperture. The computing device may include a motherboard affixed to the casing. The motherboard may include an input/output (I/O) port. The computing device may also include a locking cable. The locking cable may include a first end to connect to the I/O port. The first end may be disposed in the casing. The locking cable may also include a body connected to the first end. The body may extend from inside the casing to outside the casing through the aperture. The locking cable may also include a second end connected to the body. The second end may include an I/O connector to interface with an electronic device.

IPC Classes  ?

  • E05B 73/00 - Devices for locking portable objects against unauthorised removalLocking devices not provided for in other groups of this subclass
  • G06F 3/02 - Input arrangements using manually operated switches, e.g. using keyboards or dials

10.

TRANSFERRING WASTE TONER REMOVED FROM INTERMEDIATE TRANSFER BELT

      
Application Number 19119748
Status Pending
Filing Date 2023-04-21
First Publication Date 2026-05-21
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Yoo, Daehyung
  • Lee, Seungkyu
  • Kim, Suhyun

Abstract

A printing apparatus can include a photoconductor on which a toner image is formed, an intermediate transfer belt to which the toner image is transferred, and a. belt frame to support the intermediate transfer belt. The printing apparatus can include a. belt cleaner including an accommodation portion and a discharge duct, the accommodation portion to accommodate waste toner removed from the intermediate transfer belt, and the discharge duct extending from the accommodation portion in a width direction of the intermediate transfer belt and including a first outlet through which the waste toner is discharged. The discharge duct can be located inside the belt frame in the width direction.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 21/10 - Collecting or recycling waste developer
  • G03G 21/12 - Toner waste containers
  • G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements

11.

ELONGATED CORDS FOR DEVELOPER DEVICES

      
Application Number 19119750
Status Pending
Filing Date 2022-10-19
First Publication Date 2026-05-21
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Pettingill, Justin D.
  • Ayers, Kyler Riley
  • Lopez, Miguel Angel De Anda
  • Morse, Katelyn Christine
  • Payne, David M.
  • Luke, Jeffrey Harold
  • Jeran, Paul L.

Abstract

In some examples, a developer device for an image forming device includes a developing roller and a regulator. A nip is between the regulator and the developing roller, where a developing agent is to pass through the nip. The developer device includes an elongated cord to traverse a length of the nip in response to an applied tension.

IPC Classes  ?

  • G03G 15/095 - Removing excess solid developer
  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

12.

HEATER INCLUDING HEAT GENERATING PATTERN AND ELECTRODE HAVING CONNECTOR THEREBETWEEN

      
Application Number 19120205
Status Pending
Filing Date 2022-10-27
First Publication Date 2026-05-21
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Izawa, Tatsunori
  • Chen, Zhehong

Abstract

An example heater includes a heat generating pattern provided on a substrate, a first electrode located at a first end of the heat generating pattern, a plurality of second electrodes located at an opposite end of the heat generating pattern, the plurality of second electrodes being respectively spaced apart from the first electrode at a plurality of distances, and a connector located between the heat generating pattern and the first or a second electrode.

IPC Classes  ?

  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

13.

CONTENT SHARING USER INTERFACES

      
Application Number 19118149
Status Pending
Filing Date 2022-10-11
First Publication Date 2026-05-14
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Da Fonte Lopes Da Silva, Andre
  • Park, Chan Woo

Abstract

The present disclosure describes a device that includes a processor resource, and a non-transitory memory resource storing machine-readable instructions stored thereon that, when executed, cause the processor resource to: designate a first portion of a user interface to share content with a remote device through a conferencing application and designate a second portion of the user interface to display the content from the conferencing application to represent the content as it is received by the remote device.

IPC Classes  ?

  • G06F 3/14 - Digital output to display device
  • H04L 65/4038 - Arrangements for multi-party communication, e.g. for conferences with floor control

14.

PROVIDING FEEDBACK TO A USER OF A HAND-HELD INKJET PRINTER

      
Application Number 18695668
Status Pending
Filing Date 2021-09-27
First Publication Date 2026-05-14
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Sola Tapias, Oriol
  • Silvestre Rivero, Ricard
  • Oliva Ventayol, Xavier

Abstract

There is provided a system for providing feedback to a user of a hand-held inkjet printer, the system comprising a controller configured to determine an acceptable range of speed of the hand-held printer during printing as a function of a print job and a feedback device to provide feedback depending on the acceptable range of speed and a current speed of the hand-held printer during printing. There are also provided a hand-held inkjet printer, a non-transitory machine-readable storage medium and a method for reacting to a usage of a hand-held inkjet printer.

IPC Classes  ?

  • G06F 3/12 - Digital output to print unit
  • B41J 3/36 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability

15.

APPARATUSES WITH IMMOBILIZED CAPTURE AGENTS IN A REACTION REGION OF A CHAMBER

      
Application Number 18696344
Status Pending
Filing Date 2021-09-28
First Publication Date 2026-05-14
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Shkolnikov, Viktor
  • Govyadinov, Alexander

Abstract

An example apparatus comprises a chamber with a reaction region, the reaction region including a heater disposed within the chamber, and a set of capture agents immobilized on a surface associated with the chamber and disposed proximal to the heater. The apparatus further includes a microfluidic channel coupled to the chamber to flow fluid to the chamber, the fluid including a reagent mix including a set of sense agents bound to fluorophores and a set of reaction agents and a sample fluid including a target.

IPC Classes  ?

  • C12Q 1/6825 - Nucleic acid detection involving sensors
  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
  • B01L 7/00 - Heating or cooling apparatusHeat insulating devices
  • C12Q 1/6806 - Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
  • C12Q 1/6834 - Enzymatic or biochemical coupling of nucleic acids to a solid phase
  • C12Q 1/6876 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
  • G01N 21/64 - FluorescencePhosphorescence

16.

CONTAINERS WITH ISOLATING VENT PATHS

      
Application Number 19121533
Status Pending
Filing Date 2022-10-17
First Publication Date 2026-05-14
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Singh, Kundan
  • Haines, Paul Mark
  • Hein, Zachary
  • Wagner, Jeffrey
  • Bertles, Sean

Abstract

An example apparatus may comprise an opening to allow air to pass in and out of the apparatus, a barrier film covering the opening to prevent print substance from exiting the apparatus, an isolation region to house a print substance, and a plurality of vent paths to allow air to vent from the opening when the apparatus is in different orientations.

IPC Classes  ?

17.

Computer

      
Application Number 29977031
Grant Number D1126210
Status In Force
Filing Date 2024-12-05
First Publication Date 2026-05-12
Grant Date 2026-05-12
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Koscica, Matthew

18.

FLUID EJECTION CARTRIDGE INCLUDING SECURE RENEWAL STATUS MEMORY CELL

      
Application Number US2024053634
Publication Number 2026/095930
Status In Force
Filing Date 2024-10-30
Publication Date 2026-05-07
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Gardner, James Michael
  • Dagg, Evan Clay
  • Koll, Robert Francis
  • Panshin, Stephen Daniel
  • Ward, Jefferson Patrick
  • Yamashita, Tsuyoshi

Abstract

An integrated circuit associated with a print component can include an authentication circuit including passcode authentication logic and a read and write circuit to receive a memory access protocol, the memory access protocol including an indication of an authentication mode, receive a passcode, and in response to the indication of the authentication mode, provide the received passcode to the passcode authentication logic, the passcode authentication logic to determine whether or not the received passcode is correct.

IPC Classes  ?

  • G06F 21/44 - Program or device authentication
  • B41J 2/175 - Ink supply systems
  • G06F 21/60 - Protecting data
  • G11C 7/24 - Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writingStatus cellsTest cells
  • G06F 21/79 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories

19.

HEATER STRUCTURE WITH RECESSES

      
Application Number US2024053770
Publication Number 2026/095938
Status In Force
Filing Date 2024-10-30
Publication Date 2026-05-07
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Song, Jeongchul
  • Park, Choongkyu
  • Han, Younghoon

Abstract

A heater structure includes a pair of first heat generation elements including one or more first recess portions and a pair of second heat generation elements including one or more second recess portions. Each of the pair of first heat generation elements has a first main heating area in a middle portion along a longitudinal direction. Each of the pair of second heat generation elements has second main heating areas on a first side and a second side. The one or more first recess portions are located on the middle portion of the pair of first heat generation elements. The one or more second recess portions are located on the first side and the second side of the pair of second heat generation elements. The one or more of the first recess portions and corresponding of the one or more second recess portions are oriented in opposite directions.

IPC Classes  ?

  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

20.

WHITE INKJET INK

      
Application Number 19117369
Status Pending
Filing Date 2022-10-05
First Publication Date 2026-05-07
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Guo, Dennis Z.
  • Zheng, Jie
  • Casanas Montes, Barbara
  • Barreto Caban, Marcos A.

Abstract

An example of a white inkjet ink includes: a non-self-dispersed white pigment: from about 0.01 wt % active to about 5 wt % active, based on a total weight of the white inkjet ink, of a first anionic dispersant that is a copolymer having a weight average molecular weight (Mw) ranging from about 125.000 g/mol to about 30,000,000 g/mol: from about 0.01 wt % active to about 5 wt % active, based on the total weight of the white inkjet ink, of a second anionic dispersant that is a copolymer having a weight average molecular weight (Mw) ranging from about 700 g/mol to about 30.000 g/mol: a rheology modifier: a polymeric binder; and an aqueous vehicle.

IPC Classes  ?

21.

TRAY MOUNTED PROCESS AND TONER CARTRIDGES

      
Application Number US2024053477
Publication Number 2026/095926
Status In Force
Filing Date 2024-10-29
Publication Date 2026-05-07
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Kim, Junhui
  • Lee, Sanghoon

Abstract

An image forming apparatus (100) includes an opening (104), a main body (102) coupled to the opening including a tray receiving space (108), a tray (202) detachably coupled to the tray receiving space, a process cartridge (310) detachably coupled to the tray, and a toner cartridge (320) detachably coupled to the process cartridge and the tray.

IPC Classes  ?

  • G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

22.

WRITING RENEWAL CONFIGURATION DATA TO PRINT COMPONENT

      
Application Number US2024053721
Publication Number 2026/095933
Status In Force
Filing Date 2024-10-30
Publication Date 2026-05-07
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Ward, Jefferson Patrick
  • Gardner, James Michael
  • Dagg, Evan Clay
  • Yamashita, Tsuyoshi
  • Koll, Robert Francis
  • Sun, Vivian Weiyun
  • Panshin, Stephen Daniel

Abstract

An apparatus can include a set of electrical contacts to interface with a print component, a processor, a non-transitory, computer-readable medium including instructions which, when executed by the processor, cause the processor to transmit, using the set of electrical contacts, a renewal passcode to the print component, write, using the set of electrical contacts, a renewal status bit of the print component after transmitting the renewal passcode to the print component, and write, using the set of electrical contacts, renewal configuration data to the print component.

IPC Classes  ?

  • G06F 21/44 - Program or device authentication
  • B41J 2/175 - Ink supply systems
  • G06F 21/60 - Protecting data
  • G06F 21/79 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
  • G11C 7/24 - Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writingStatus cellsTest cells
  • G06F 21/62 - Protecting access to data via a platform, e.g. using keys or access control rules
  • G06F 21/64 - Protecting data integrity, e.g. using checksums, certificates or signatures

23.

CARTRIDGE ALIENATION RESPONSIVE TO POSITION OF CONTROL MEMBER

      
Application Number US2024053730
Publication Number 2026/095934
Status In Force
Filing Date 2024-10-30
Publication Date 2026-05-07
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Mcdaniel, Gabriel S.
  • Pettingill, Justin D.
  • Luke, Jeffrey H.
  • Payne, David M.

Abstract

A cartridge to be received by a printer includes a cartridge alienation assembly to be alternated between a first configuration that inhibits the cartridge from providing toner to the printer and a second configuration that allows for the cartridge to provide the toner to the printer, a sensor to generate sensor data indicating a position of a separation control member of the printer, and a processing circuit including memory and at least one processor. The processing circuit to receive, from the sensor, the sensor data indicating the position of the separation control member of the printer, identify whether the position of the separation control member corresponds to the second configuration, and responsive to the position of the separation control member corresponding to the second configuration, adjust the cartridge alienation assembly from the first configuration to the second configuration.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

24.

PERFORMING PRINTING BY A SURFACE PRINTER ACCORDING TO A MAXIMUM PRINTING SPEED

      
Application Number US2024053860
Publication Number 2026/095940
Status In Force
Filing Date 2024-10-31
Publication Date 2026-05-07
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Martin Orue, Eduardo
  • Marina Miranda, Javier
  • Onecha Celestino, Javier
  • Velasco Figueras, Joan Marti

Abstract

A method of performing printing by a surface printer. The method includes: receiving printing destination coordinates; setting a maximum printing speed for printing of an element based on a printing direction corresponding to the printing destination coordinates; and causing the surface printer to print an element according to the maximum printing speed.

IPC Classes  ?

  • B25H 7/04 - Devices, e.g. scribers, for marking
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • A63C 19/06 - Apparatus for setting-out or dividing courts
  • G05D 105/00 - Specific applications of the controlled vehicles

25.

Cooling system for a computer

      
Application Number 29953433
Grant Number D1125093
Status In Force
Filing Date 2024-07-22
First Publication Date 2026-05-05
Grant Date 2026-05-05
Owner Hewlett-Packard Development Company, Ltd. (USA)
Inventor
  • Yoon, Daniel Young
  • Wong, Glenn A.

26.

Computer

      
Application Number 29977053
Grant Number D1125149
Status In Force
Filing Date 2024-12-05
First Publication Date 2026-05-05
Grant Date 2026-05-05
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Koscica, Matthew

27.

Computer

      
Application Number 29977040
Grant Number D1125148
Status In Force
Filing Date 2024-12-05
First Publication Date 2026-05-05
Grant Date 2026-05-05
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Koscica, Matthew

28.

MASKING BASED ON INTERLEAVING ZONES

      
Application Number 18932046
Status Pending
Filing Date 2024-10-30
First Publication Date 2026-04-30
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Gomez Minano, Hector
  • Sarkar, Utpal Kumar
  • Costal Fornells, Pau
  • Morovic, Peter
  • Etchebehere Juan, Sergio
  • Morovic, Jan

Abstract

A process includes defining top and bottom interleaving zones of a print swath, generating a top interleaving mask corresponding to the top interleaving zone based on an objective drop density for the top interleaving mask, and drop locations provided by a print mask, generating a bottom interleaving mask corresponding to the bottom interleaving zone based on the top interleaving mask, selecting a subset of drop locations provided by the print mask by applying the top and bottom interleaving masks to the print mask, and causing colorant to be deposited to a substrate according to the selected subset of drop locations.

IPC Classes  ?

  • B41J 2/21 - Ink jet for multi-colour printing
  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers

29.

Autonomous ground printer

      
Application Number 29877482
Grant Number D1124120
Status In Force
Filing Date 2023-06-07
First Publication Date 2026-04-28
Grant Date 2026-04-28
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Martin Orue, Eduardo
  • Maya Agudo, Isidoro
  • Onecha Celestino, Javier
  • Velasco Figueras, Joan Marti

30.

MICROFLUIDIC DEVICES WITH PAIRING REGIONS AND DROPLET GENERATORS

      
Application Number 19113226
Status Pending
Filing Date 2022-10-14
First Publication Date 2026-04-23
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Shkolnikov, Viktor
  • Govyadinov, Alexander

Abstract

Example microfluidic devices include a pairing region and a droplet generator. The pairing region comprises a first microfluidic channel including a first sensor, the first microfluidic channel fluidically coupled to a first fluid actuator and to receive a first aqueous fluid, and a second microfluidic channel including a second sensor, the second microfluidic channel fluidically coupled to a second fluid actuator and to receive a second aqueous fluid. The droplet generator comprises a merging chamber fluidically coupled to the first microfluidic channel, the second microfluidic channel, and a third microfluidic channel, the third microfluidic channel fluidically coupled to the merging chamber and to receive a carrier fluid, and a fluid ejector fluidically coupled to the merging chamber.

IPC Classes  ?

  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

31.

DETECT AND PREVENT BATTERY SWELLING

      
Application Number 19364479
Status Pending
Filing Date 2025-10-21
First Publication Date 2026-04-23
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Landry, John
  • Macedo, Augusto Queiroz De
  • Singh, Amit Kumar
  • Lee, Frederick

Abstract

Examples are described herein for monitoring power source usage of a computing device, including a battery and another power source, over time. In various examples, time periods of this monitored time may be added to a time count based on their immediately previous or immediately subsequent time periods satisfying a condition. The time count may be used to track periods of time during which certain power source usage factors are present that may lead to or may indicate the presence of battery swelling. After a time period is added to the time count, the updated time count can be compared to a time count threshold, and a user of the computing device may be warned based on the comparison. The threshold and warning may be selected to warn a user of potential present or future swelling of the battery.

IPC Classes  ?

  • G01R 31/371 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
  • G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC

32.

INITIATING DEVICE AUTHENTIATION MODE

      
Application Number US2024051489
Publication Number 2026/084698
Status In Force
Filing Date 2024-10-16
Publication Date 2026-04-23
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Smith, Kenneth K.
  • Fitzgerald, Kevin
  • Adams, James F.

Abstract

In some examples, the disclosure describes a device that includes instructions that cause a processor to: activate the device, that includes a stored default password, at an unsecured access mode, receive a selection for an authentication mode of the device, and initiate one of a plurality of authentication modes for the device in response to the selection and an identified condition of the device. In these examples, the plurality of authentication modes include a first authentication mode that activates the stored default password and a second authentication mode that deactivates the stored default password.

IPC Classes  ?

33.

2026 Toner Cartridge Road Trade Dress - Label Only w HP Logo - Magenta

      
Application Number 247072500
Status Pending
Filing Date 2026-04-22
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

(1) Printing dyes; colorants for use in the manufacture of printing ink; pigments for ink for printers and photocopiers; printing inks; ink contained in cartridges; filled ink cartridges for printers and photocopiers; ink for printers; ink for photocopiers; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers

34.

2026 Toner Cartridge Road Trade Dress - Label Only w HP Logo - Yellow

      
Application Number 247072400
Status Pending
Filing Date 2026-04-22
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

(1) Printing dyes; colorants for use in the manufacture of printing ink; pigments for ink for printers and photocopiers; printing inks; ink contained in cartridges; filled ink cartridges for printers and photocopiers; ink for printers; ink for photocopiers; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers

35.

2026 Toner Cartridge Road Trade Dress - Label Only w HP Logo - Cyan

      
Application Number 247072300
Status Pending
Filing Date 2026-04-22
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

(1) Printing dyes; colorants for use in the manufacture of printing ink; pigments for ink for printers and photocopiers; printing inks; ink contained in cartridges; filled ink cartridges for printers and photocopiers; ink for printers; ink for photocopiers; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers

36.

2026 Toner Cartridge Road Trade Dress - Label Only w HP Logo - Black

      
Application Number 247072600
Status Pending
Filing Date 2026-04-22
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

(1) Printing dyes; colorants for use in the manufacture of printing ink; pigments for ink for printers and photocopiers; printing inks; ink contained in cartridges; filled ink cartridges for printers and photocopiers; ink for printers; ink for photocopiers; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers

37.

IMAGING CALIBRATION TARGETS

      
Application Number 18913553
Status Pending
Filing Date 2024-10-11
First Publication Date 2026-04-16
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Thomas, Iii, Fred Charles
  • Garcia-Reyero Vinas, Santiago
  • Claver, Miles Maxwell
  • St. John, Joshua Alan

Abstract

In some examples, the imaging system can include a first calibration object having a first surface configuration to visually indicate a polarization orientation of light emitted thereto. The imaging system may include a light source to emit light in accordance with a plurality of light settings, each of the light settings defining a different relative position of the light source with respect to the first calibration object. The imaging system can include an imaging device. The imaging system can include a processor to instruct the imaging device to capture a plurality of images of the first calibration object illuminated with the light source with different light settings of the plurality of light settings and to calibrate image data corresponding to a sample under the same different light settings based on the plurality of images captured by the imaging device.

IPC Classes  ?

  • G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means

38.

IMAGE PROCESSING

      
Application Number 18913567
Status Pending
Filing Date 2024-10-11
First Publication Date 2026-04-16
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Thomas, Iii, Fred Charles
  • Garcia-Reyero Vinas, Santiago
  • St. John, Joshua Alan

Abstract

In an example, a photometric imaging system may include an imaging device to capture a plurality of images under a plurality of different illumination settings. The photometric imaging system can include a graphics unit and a connection bridge. The graphics unit may execute image processing tasks on the plurality of images to obtain processed images defining material channel data. The connection bridge of the photometric imaging system may transmit the plurality of processed images to a secondary electronic device.

IPC Classes  ?

  • G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
  • G06T 3/4015 - Image demosaicing, e.g. colour filter arrays [CFA] or Bayer patterns
  • G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model

39.

PIXEL DEVIATIONS

      
Application Number 18913592
Status Pending
Filing Date 2024-10-11
First Publication Date 2026-04-16
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Thomas, Iii, Fred Charles
  • St. John, Joshua Alan
  • Garcia-Reyero Vinas, Santiago
  • Claver, Miles Maxwell

Abstract

In an example, a photometric imaging device comprises a light source to illuminate a target area including a set of fiducials, an imaging device to capture images of the set of fiducials illuminated by the light source with different image viewing settings, and a controller. The controller is to: control the light source to subsequently illuminate the set of fiducials with the different image viewing settings; determine locations of the set of fiducials on the captured images; determine pixel deviations between the determined locations; and determine offset data based at least in part on the determined pixel deviations.

IPC Classes  ?

  • G01N 21/88 - Investigating the presence of flaws, defects or contamination
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means

40.

MOTOR TO CONTROL AN IMAGE TRANSFER BELT AND CALIBRATION SENSOR

      
Application Number US2024050842
Publication Number 2026/080074
Status In Force
Filing Date 2024-10-10
Publication Date 2026-04-16
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Lee, Changwoo
  • You, Yongho
  • Shin, Daelim

Abstract

An image forming apparatus (IFA) includes a first mechanism to change a state of an image transfer belt (ITB), a second mechanism to control a shutter for a calibration sensor, a motor to drive the first mechanism and the second mechanism, and a processor to control the motor to operate in a first mode, a second mode, or a third mode. In the first mode, the motor is controlled to drive the first mechanism to change the state of the ITB, in the second mode, the motor is controlled to drive the second mechanism to open or close the shutter, and in the third mode, the processor is to identify a position of the shutter, and to drive the second mechanism to place the shutter in a closed position based on the identified position.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

41.

OVER-PRINT VARNISH FORMULATION

      
Application Number 19376391
Status Pending
Filing Date 2025-10-31
First Publication Date 2026-04-16
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Trubnikov, Alex
  • Bar, Mazi
  • Cohen, Eytan
  • Dar, Kfir
  • Cohen, Kobi

Abstract

An over-print varnish formulation is described. The formulation comprises a non-ionic polyurethane dispersion; a water-soluble polymer of Mw less than 55,000; a wax having a particle size (d50) 200 nm or less; and a water-soluble solvent, and at least 20 wt % solids, based on the total weight of the formulation. A method of printing using the formulation, and a printed article are also described.

IPC Classes  ?

  • C09D 11/30 - Inkjet printing inks
  • B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
  • B41M 7/00 - After-treatment of printed works, e.g. heating, irradiating
  • B42D 15/00 - Printed matter of special format or style not otherwise provided for
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 11/106 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C09D 11/12 - Printing inks based on waxes or bitumen
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
  • C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
  • C09D 175/04 - Polyurethanes

42.

Shared secret key based on system components

      
Application Number 18913534
Grant Number 12651054
Status In Force
Filing Date 2024-10-11
First Publication Date 2026-04-16
Grant Date 2026-06-09
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Jeansonne, Jeffrey Kevin
  • Shaw, Adrian Laurence
  • Bramley, Jr., Richard Alden
  • Dalton, Christopher Ian
  • Schiffman, Joshua Serratelli

Abstract

Systems and methods for establishing a shared secret (or pre-shared key (PSK)) between a Chipset and a trusted platform module (TPM) of a computing device that can be used to encrypt all communication between those two components. The PSK may include two (or more) factors that must both be available to the Chipset in order to communicate with the TPM. The first factor may originate from an Endpoint Security Controller (EpSC) and the second factor may originate from within the Chipset. The PSK may only be regenerated by combining multiple segments of a key, referred to as “factors,” that may be separately assigned to different components of a computing device. If all factors are not provided to a TPM upon boot-up, communication between the Chipset and the TPM may be disabled.

IPC Classes  ?

  • G06F 21/44 - Program or device authentication
  • G06F 21/70 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
  • H04L 9/08 - Key distribution
  • G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities

43.

HEATSINK CELL WITH MICROCHANNELS

      
Application Number US2024050286
Publication Number 2026/080061
Status In Force
Filing Date 2024-10-07
Publication Date 2026-04-16
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Dowell, Daniel D.
  • Seaver, Richard W.
  • Cumbie, Michael W.
  • Gonzales, Curt Gene

Abstract

A heatsink system includes an inlet, an outlet, and heatsink cells. Each of the heatsink cells includes microchannels, an inlet slot, and an outlet slot. The inlet slot includes a first fluidic channel extending along a first outer side of a first set of the microchannels, a second fluidic channel extending along a second outer side of a second set of the microchannels, and an inlet portion to receive fluid from the inlet and direct into the first fluidic channel and the second fluidic channel. The outlet slot, extending along a first inner side of the microchannels and a second inner side of the microchannels, receives the fluid flowing through the first set of the microchannels and the second set of the microchannels, and directs into the outlet.

IPC Classes  ?

  • F28F 3/12 - Elements constructed in the shape of a hollow panel, e.g. with channels
  • H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids

44.

PLASMA BONDING FORMATION OF DIRECT ELECTRICAL AND FLUIDIC INTERCONNECTS

      
Application Number 19112926
Status Pending
Filing Date 2023-09-06
First Publication Date 2026-04-09
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Chen, Chien-Hua
  • Cumbie, Michael W.

Abstract

A device includes first and second substrates. The first substrate has one or multiple first channels and one or multiple first conductors that are exposed at a first surface of the first substrate. The second substrate has one or multiple second channels and one or multiple second conductors that are exposed at a second surface of the first substrate. The first and second substrates are plasma bonded together at the first and second surfaces, forming direct electrical interconnects between the first and second conductors and direct fluidic interconnects between the first and second channels.

IPC Classes  ?

45.

COOLING OF FUSER BASED ON TEMPERATURE OF PRESSURE MEMBER

      
Application Number 19112936
Status Pending
Filing Date 2023-03-25
First Publication Date 2026-04-09
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Lee, Sunhyung
  • Kang, Sungwoo
  • Lee, Seungjun

Abstract

A printing apparatus can include a fuser including a fusing member, a heater configured to heat the fusing member, and a pressure member configured to form, together with the fusing member, a fusing nip through which the print medium passes, a ventilation device to supply air to the fusing member in a width direction, a first temperature sensor configured to detect a temperature of a non-paper passing area of the pressure member, a controller configured to control the ventilation device based on the temperature detected by the first temperature sensor.

IPC Classes  ?

  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
  • G03G 21/20 - Humidity or temperature control

46.

HP

      
Application Number 246761400
Status Pending
Filing Date 2026-04-08
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

(1) Printing ink; ink for printers and photocopiers; ink cartridges, filled, for printers and photocopiers; toner cartridges, filled, for printers and photocopiers; toner for printers and photocopiers

47.

hp

      
Application Number 019342263
Status Pending
Filing Date 2026-04-02
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

Dyes, colorants, pigments and inks; printing ink; ink contained in cartridges; filled ink cartridges; ink for printers; ink for photocopiers; toners; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers.

48.

hp

      
Application Number 019342340
Status Pending
Filing Date 2026-04-02
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

Dyes, colorants, pigments and inks; printing ink; ink contained in cartridges; filled ink cartridges; ink for printers; ink for photocopiers; toners; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers.

49.

hp

      
Application Number 019342259
Status Pending
Filing Date 2026-04-02
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

Dyes, colorants, pigments and inks; printing ink; ink contained in cartridges; filled ink cartridges; ink for printers; ink for photocopiers; toners; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers.

50.

COOLING STRUCTURE FOR FUSER

      
Application Number 19111415
Status Pending
Filing Date 2023-03-13
First Publication Date 2026-04-02
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Lee, Hanjun
  • Noh, Seounghoon
  • Kim, Younghoon

Abstract

A print apparatus includes a toner image forming portion to form a toner image on a print medium, a fuser to fuse the toner image onto the print medium, and an air blower. duct guides cooling air from the blower to the fuser. The duct includes an outer wall, an inlet formed in the outer wall facing the blower, and an outlet facing the fuser. A slider may be slidable in a width direction of the print medium so as to adjust an opening amount of the outlet. A flexible guide member is provided to guide the cooling air from the inlet of the duct to the outlet. An outlet side end portion of the flexible guide member is connected to an end portion of the slider and an inlet side end portion thereof is slidably supported on the outer wall of the duct.

IPC Classes  ?

  • G03G 21/20 - Humidity or temperature control
  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

51.

MEDIA COLLECTING

      
Application Number 19390256
Status Pending
Filing Date 2025-11-14
First Publication Date 2026-04-02
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Valles Casanova, Lluis
  • Flotats Villagrasa, Carles
  • Melero Cazorla, David
  • Dalmau Fabregat, Jordi
  • Martinez Guillen, Abel

Abstract

According to an example, a method to wind media in an output roller downstream a media advance engine comprises advancing a medium for a determined medium length, collecting a first portion of the determined medium length at a first speed by rotating the output roller in a winding direction, and collecting a second portion of the determined medium length by rotating the output roller in a winding direction at a second speed, wherein the first speed is greater than the second speed.

IPC Classes  ?

  • B65H 20/34 - Arrangements for accumulating surplus web by making loops with rollers
  • B65H 5/06 - Feeding articles separated from pilesFeeding articles to machines by rollers
  • B65H 23/188 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
  • B65H 23/192 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web motor-controlled

52.

HP

      
Serial Number 99731708
Status Pending
Filing Date 2026-03-29
Owner Hewlett-Packard Development Company, L.P., Hewlett-Packard Development Company, L.P. is a Limited partnership organized under the laws of Texas. It is composed of HPQ Holdings, LLC, Limited liability company, Delaware (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

Dyes, colorants, pigments and inks; printing ink; ink contained in cartridges; filled ink cartridges; ink for printers; ink for photocopiers; toners; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers

53.

hp 936

      
Application Number 019337989
Status Pending
Filing Date 2026-03-27
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

Dyes, colorants, pigments and inks; printing ink; ink contained in cartridges; filled ink cartridges; ink for printers; ink for photocopiers; toners; toner contained in cartridges; filled toner cartridges; printing toner; toner for printers; toner for photocopiers.

54.

PRINTING FLUID DELIVERY DEVICES

      
Application Number 19118279
Status Pending
Filing Date 2022-10-20
First Publication Date 2026-03-26
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Vazquez Fernandez, Dorkaitz Alain
  • Butinya Teixido, David
  • Del Barrio Sanchez, Alvaro
  • Miravet Jimenez, Joan Albert

Abstract

According to an example, a fluid delivery device comprises a printing fluid pump, a return fluid path including a pressure relief valve to receive printing fluid from an outlet of the pump, and a recirculation valve movable between an open position and a closed position. In the open position of the recirculation valve, a recirculation path from the outlet of the pump towards a supply port connectable to a printing fluid supply is established and, in the closed position, a feeding path from the outlet of the pump towards a printhead port is established. The fluid delivery device comprises a pressure-controlled mode in which the recirculation valve is in the closed position and the pump is to operate at a pressure sufficient to open the pressure relief valve.

IPC Classes  ?

  • B41J 2/18 - Ink recirculation systems
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems

55.

COMMUNICATION OF DIGITAL REPRESENTATIONS TO NOZZLE SETS

      
Application Number 19112925
Status Pending
Filing Date 2022-09-20
First Publication Date 2026-03-26
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Serra Monner, Albert
  • Petre, Benoit
  • Casanovas Suriol, Selma

Abstract

A printing method is described in which a first and a second digital representation data for a first and a second digital representation to be printed on a same side of a same media is received. First print data (121) corresponding to a printing fluid for the first digital representation is determined on the basis of the first digital representation data. Second print data (132) corresponding to the printing fluid for the second digital representation is determined on the basis of the second digital representation data. The method further comprises communicating the first print data corresponding to a specific swath (145) to a first set of nozzles, and communicating the second print data corresponding to the specific swath to a second set of nozzles, by the first and the second set of nozzles are disjoint sets of nozzles from a same die and are fluidically connected to the printing fluid.

IPC Classes  ?

  • B41J 2/21 - Ink jet for multi-colour printing
  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers

56.

PROVIDING CONTEXTUAL INFORMATION FOR JOB PREVIEW

      
Application Number US2024047606
Publication Number 2026/063935
Status In Force
Filing Date 2024-09-20
Publication Date 2026-03-26
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Lim, Mok-Hwa
  • Park, Sun-Young
  • Lee, Dong-Seok

Abstract

In some examples, the disclosure describes image forming device, comprising: an image forming mechanism, a user interface device, a communication device, a processor, and a non-transitory memory resource storing machine-readable instructions stored thereon that, when executed, cause the processor to: cause the communication device to receive job data that includes image data, provide contextual information about the job data, provide a preview image of the job data, cause the user interface device to output the preview image and the contextual information, and cause the image forming mechanism to perform an image forming job based on an input to the user interface device.

IPC Classes  ?

  • H04N 1/00 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmissionDetails thereof
  • G06F 3/12 - Digital output to print unit

57.

DIMENSION

      
Serial Number 99724217
Status Pending
Filing Date 2026-03-25
Owner Hewlett-Packard Development Company, L.P., Hewlett-Packard Development Company, L.P. is a Limited partnership organized under the laws of Texas. It is composed of HPQ Holdings, LLC, Limited liability company, Delaware (USA)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 20 - Furniture and decorative products
  • 38 - Telecommunications services

Goods & Services

Display screens; Telecommunications and data networking hardware, namely, devices for the transmission, reception and aggregation of voice, data, and video communications across multiple network infrastructures and communications protocols; Computer hardware and software for videoconferencing, namely, for controlling audio, video, communication, and general-purpose utilities in videoconferencing rooms and applications; Computer hardware with embedded software featuring artificial intelligence (AI) for motion tracking, body positioning, and depth estimation; Computer hardware with embedded computer software platforms for video conferencing; Computer hardware with embedded computer operating system software for video conferencing; Computer hardware with embedded software for the display, transmission, reception, streaming and compression of images and video; Computer hardware with embedded software; Computer hardware with embedded artificial intelligence (AI) software for use in machine learning and the creation of images, video and audio; Computer hardware for interactive two-way audio and video communications; Computer hardware; Computer software; Video conferencing equipment, namely, video cameras, audio speakers, audio devices, sensors, microphones, computer hardware, display screens, monitors, and touchscreen control consoles; Video conferencing hardware with embedded software for video conferencing; Video conferencing hardware with embedded software for the display, transmission, reception, streaming and compression of images, video, and for the delivery of audio; Video conferencing hardware; Video conferencing hardware featuring sensors for detecting facial expressions, gestures, objects, and speech; Video conferencing hardware with embedded software using artificial intelligence (AI) for use in machine learning and the creation of images, video and audio; Video conferencing hardware with embedded software platforms for video conferencing; Sensors for detecting facial expressions, gestures, objects, and speech; Motion sensors Furniture, namely, tables and chairs specifically adapted for video conferencing equipment; Office tables; Office chairs Video conferencing services

58.

HP

      
Serial Number 99725224
Status Pending
Filing Date 2026-03-25
Owner Hewlett-Packard Development Company, L.P., Hewlett-Packard Development Company, L.P. is a Limited partnership organized under the laws of Texas. It is composed of HPQ Holdings, LLC, Limited liability company, Delaware (USA)
NICE Classes  ? 02 - Paints, varnishes, lacquers

Goods & Services

Printing ink; ink for printers and photocopiers; ink cartridges, filled, for printers and photocopiers; toner cartridges, filled, for printers and photocopiers; toner for printers and photocopiers

59.

DIGITAL SIGNATURE

      
Application Number 18994046
Status Pending
Filing Date 2022-07-15
First Publication Date 2026-03-19
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Panshin, Stephen D.
  • Everest, Paul S.
  • Harmon, Michael

Abstract

A logic circuitry package includes an interface to communicate with a controller and a logic circuit. The logic circuit includes a memory arrangement storing a first digital signature, a second digital signature, and a third digital signature signed over the first digital signature and the second digital signature. The logic circuit is configured to receive at least one request from the controller; and transmit the first digital signature, the second digital signature, and the third digital signature to the controller in response to the at least one request.

IPC Classes  ?

  • G06F 21/73 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information by creating or determining hardware identification, e.g. serial numbers
  • G06F 21/60 - Protecting data
  • G06F 21/78 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data

60.

DIMENSION

      
Application Number 246225900
Status Pending
Filing Date 2026-03-13
Owner Hewlett-Packard Development Company, L.P. (USA)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 20 - Furniture and decorative products
  • 38 - Telecommunications services

Goods & Services

(1) Display screens; Telecommunications and data networking hardware, namely, devices for the transmission, reception and aggregation of voice, data, and video communications across multiple network infrastructures and communications protocols; Computer hardware and software for videoconferencing, namely, for controlling audio, video, communication, and general-purpose utilities in videoconferencing rooms and applications; Computer hardware with embedded software featuring artificial intelligence (AI) for motion tracking, body positioning, and depth estimation; Computer hardware with embedded computer software platforms for video conferencing; Computer hardware with embedded computer operating system software for video conferencing; Computer hardware with embedded software for the display, transmission, reception, streaming and compression of images and video; Computer hardware with embedded software; Computer hardware with embedded artificial intelligence (AI) software for use in machine learning and the creation of images, video and audio; Computer hardware for interactive two-way audio and video communications; Computer hardware; Computer software; Video conferencing equipment, namely, video cameras, audio speakers, audio devices, sensors, microphones, computer hardware, display screens, monitors, and touchscreen control consoles; Video conferencing hardware with embedded software for video conferencing; Video conferencing hardware with embedded software for the display, transmission, reception, streaming and compression of images, video, and for the delivery of audio; Video conferencing hardware; Video conferencing hardware featuring sensors for detecting facial expressions, gestures, objects, and speech; Video conferencing hardware with embedded software using artificial intelligence (AI) for use in machine learning and the creation of images, video and audio; Video conferencing hardware with embedded software platforms for video conferencing; Sensors for detecting facial expressions, gestures, objects, and speech; Motion sensors (2) Furniture, namely, tables and chairs specifically adapted for video conferencing equipment; Office tables; Office chairs (1) Video conferencing services

61.

SELECTING COMBINATION OF PARAMETERS FOR PREPROCESSING FACIAL IMAGES OF WEARER OF HEAD-MOUNTABLE DISPLAY

      
Application Number 19106147
Status Pending
Filing Date 2022-08-31
First Publication Date 2026-03-12
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Zhang, Shibo
  • Wei, Jishang
  • Sundaramoorthy, Prahalathan

Abstract

For each facial image of a wearer of a head-mountable display (HMD), preprocessed facial images corresponding to combinations of preprocessing parameters are generated. A machine learning model is applied to each preprocessed facial image to predict facial action units. The facial action units predicted from each preprocessed facial image are retargeted onto an avatar to render an avatar facial image. Avatar facial landmarks within each avatar facial image and wearer facial landmarks within each facial image are detected. The combination of preprocessing parameters yielding a highest similarity between the avatar facial landmarks and the wearer facial landmarks corresponding to the avatar facial landmarks is selected.

IPC Classes  ?

  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
  • G06T 13/40 - 3D [Three Dimensional] animation of characters, e.g. humans, animals or virtual beings
  • G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces

62.

SENSOR LOGIC STATE DETECTIONS

      
Application Number 19389929
Status Pending
Filing Date 2025-11-14
First Publication Date 2026-03-12
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Chong, Ban Ho
  • Low, Tong Nam Samuel

Abstract

Examples described herein relate to system and methods consistent with the disclosure. For instance, the imaging system comprises a tray to receive print media, a first sensor to detect a first printing event in the imaging system, a second sensor to detect a second printing event in the imaging system, and a processing resource to determine if the first sensor detected a first printing event, based on the first sensor detecting print media reaching or dropping below a threshold level in the tray, set a logic state based on determining if the first sensor detected the first printing event, maintain the set logic state responsive to the determination that the first sensor detected the first printing event until the second printing event is detected by the second sensor.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B65H 7/04 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to absence of articles, e.g. exhaustion of pile
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

63.

TRAINING INSTANCES OF MACHINE LEARNING MODEL FOR FACIAL EXPRESSION PREDICTION AND GENERATING NEW AVATARS USED IN TRAINING

      
Application Number 19106170
Status Pending
Filing Date 2022-09-02
First Publication Date 2026-03-12
Owner
  • Hewlett-Packard Development Company, L.P. (USA)
  • Purdue Research Foundation (USA)
Inventor
  • Huang, Yingying
  • Ji, Xiaoyu
  • Wei, Jishang
  • Yang, Justin
  • Sundaramoorthy, Prahalathan
  • Zhang, Shibo
  • Zhu, Fengqing
  • Allebach, Jan Philip
  • Lin, Qian

Abstract

For each avatar, testing images are rendered for different facial expressions that each have ground truth facial action units. An instance of a machine learning model is applied to the testing images to generate predicted facial action units for each testing image. A predictive performance of the instance is calculated for each avatar based on the predicted and ground truth facial action units for the testing images of the avatar. A first set of features common to the avatars for which the predictive performance was better than a first threshold, and a second set of features common to the avatars for which the predictive performance was worse than a second threshold, are identified. The features present only in the second set are identified, as difference features. New avatars having the difference features are generated. For each avatar, testing images are rendered for different facial expressions that each have ground truth facial action units. An instance of a machine learning model is applied to the testing images to generate predicted facial action units for each testing image. A predictive performance of the instance is calculated for each avatar based on the predicted and ground truth facial action units for the testing images of the avatar. A first set of features common to the avatars for which the predictive performance was better than a first threshold, and a second set of features common to the avatars for which the predictive performance was worse than a second threshold, are identified. The features present only in the second set are identified, as difference features. New avatars having the difference features are generated. WO

IPC Classes  ?

  • G06T 13/40 - 3D [Three Dimensional] animation of characters, e.g. humans, animals or virtual beings
  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions

64.

Autonomous ground printer

      
Application Number 29866480
Grant Number D1117382
Status In Force
Filing Date 2022-09-14
First Publication Date 2026-03-10
Grant Date 2026-03-10
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Esquius Rafat, Ferran
  • Navas Sanchez, Borja
  • Abello Rosello, Lluis
  • Geerts, Albertus Wilhelmus Bernardus

65.

MOVABLE CLEANING DEVICE

      
Application Number 19104612
Status Pending
Filing Date 2022-12-19
First Publication Date 2026-03-05
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Nakajima, Kensuke
  • Hori, Satoru
  • Miyake, Koji
  • Ikeura, Shun

Abstract

A cleaning device includes a contact member that contacts a rotation surface and a lever device which displaces the contact member. The lever device includes a roller which contacts the rotation surface and a lever which supports the roller to rotate in response to a forward rotation of the rotation surface. The lever is displaced by receiving a force of the rotation surface through the roller and separates the contact member from the rotation surface, in response to a backward rotation of the rotation surface.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

66.

CHECKING PRINTOUT AT HOST DEVICE

      
Application Number 19107135
Status Pending
Filing Date 2023-01-31
First Publication Date 2026-03-05
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Kim, Han Sung
  • Park, Chang Soo
  • Park, Jea Hong
  • Chung, Inhong
  • Hwang, Sunkye

Abstract

Examples include an image forming apparatus, including; a transceiver to receive a first print job from the host device; an image former to generate a printout corresponding to at least one page of a target document of the first print job; a scanner; and a controller. The controller is to: in response to a proof print function activated for the first print job, control the scanner to generate a scan image of the printout and control the transceiver to send the scan image to the host device; and in response to reception of, from the host device, information regarding a change of a print setting for the first print job, control the image former to perform, based on the information, image generation of the first print job.

IPC Classes  ?

67.

STRUCTURE FOR ELECTRIC CONTACT PORTION OF TONER CARTRIDGE

      
Application Number 19386173
Status Pending
Filing Date 2025-11-11
First Publication Date 2026-03-05
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Kim, Junhui
  • Park, Jinsam
  • Lee, Sanghoon
  • Kim, Jongin

Abstract

A toner cartridge includes a body having a toner outlet therein, a coupler provided on the body, and an electric contact portion for electrical connection with a printing apparatus. Based on a force applied to the electric contact portion by an elastic sealing member between the printing apparatus and the toner outlet being referred to as a first force and a force applied to the electric contact portion by rotation of the coupler being referred to as a second force, a contact surface of the electric contact portion faces between a direction of the first force and a direction of the second force.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements

68.

ATTACHMENTS TO PROVIDE AN ALIGNING FORCE

      
Application Number 19102855
Status Pending
Filing Date 2022-08-12
First Publication Date 2026-02-26
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Payne, David M.
  • Pettingill, Justin
  • Luke, Jeffrey
  • Mcdaniel, Gabriel Scott

Abstract

An example mountable set to be mounted in an image forming apparatus (100) includes a process cartridge (200) having a driven gear (210), the driven gear to couple with a driving gear (120) of the image forming apparatus and to receive a driving force from the driving gear and an attachment (300). The attachment includes a mounting portion (310) to mount to the image forming apparatus and a protruding portion (320), coupled to the mounting portion, to provide an aligning force to the driving gear.

IPC Classes  ?

  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

69.

BINDER FLUID FOR THREE-DIMENSIONAL PRINTING

      
Application Number US2024043082
Publication Number 2026/043474
Status In Force
Filing Date 2024-08-20
Publication Date 2026-02-26
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Anthony, Thomas
  • Galati-Boswell, Elizabeth
  • Jangam, John Samuel Dilip

Abstract

A binder fluid includes an aqueous vehicle, copper II formate dissolved in the aqueous vehicle, and a water-soluble, ammonium-containing compound. The copper II formate and the water-soluble, ammonium-containing compound are present in the binder fluid in a weight ratio ranging from about 0.6:1 to about 2:1. The binder fluid has a pH ranging from 4 to less than 7.

IPC Classes  ?

  • B33Y 10/00 - Processes of additive manufacturing
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
  • B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials

70.

CHEMICAL LYSIS SYSTEMS

      
Application Number 19375947
Status Pending
Filing Date 2025-10-31
First Publication Date 2026-02-26
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Shkolnikov, Viktor
  • Govyadinov, Alexander
  • Hammerstad, Diane R.

Abstract

In one example in accordance with the present disclosure, a chemical lysis system is described. The chemical lysis system includes a microfluidic channel to serially feed individual cells from a volume of cells to at least one chemical lysing device. Each chemical lysing device includes at least one lysing chamber to receive, from the microfluidic channel, a single cell to be lysed. The chemical lysing device also includes an orifice disposed in each lysing chamber to receive a lysing agent and a sensor to detect a state within the lysing chamber. A controller of the chemical lysis system analyzes a ruptured cell.

IPC Classes  ?

  • C12M 1/00 - Apparatus for enzymology or microbiology
  • C12M 1/42 - Apparatus for the treatment of microorganisms or enzymes with electrical or wave energy, e.g. magnetism, sonic wave
  • C12M 3/06 - Tissue, human, animal or plant cell, or virus culture apparatus with filtration, ultrafiltration, inverse osmosis or dialysis means

71.

THREE-DIMENSIONAL PRINTING WITH FLAME-RETARDANT COMPOUND

      
Application Number US2024043079
Publication Number 2026/043473
Status In Force
Filing Date 2024-08-20
Publication Date 2026-02-26
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Levin, Emily
  • Discekici, Emre Hiro
  • Thomas, Jake H.

Abstract

An example of a multi-fluid kit for three-dimensional printing includes a fusing agent, a detailing agent, and a flame-retardant cyclodextrin compound. The fusing agent includes an electromagnetic energy absorber and a first liquid vehicle. The detailing agent includes a second liquid vehicle. The flame-retardant cyclodextrin compound is included in the fusing agent, or in the detailing agent, or in both the fusing agent and the detailing agent.

IPC Classes  ?

  • B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B29K 105/00 - Condition, form or state of moulded material

72.

GESTURE-BASED VIRTUAL INTERFACES

      
Application Number 19370692
Status Pending
Filing Date 2025-10-27
First Publication Date 2026-02-19
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Dalla Rosa, Pierluigi
  • Chaudhri, Imran A.
  • Gobera Rubalcava, Daniel
  • Kocienda, Kenneth Luke
  • Alderfer, Kevin
  • Jiao, Edward
  • Dickens, Joshua

Abstract

Systems, methods, devices and non-transitory, computer-readable storage mediums are disclosed for a wearable multimedia device and cloud computing platform with an application ecosystem for processing multimedia data captured by the wearable multimedia device. In an embodiment, a wearable multimedia device projects a virtual interface (VI) on a surface using a laser projector. Further, the device determines, based on sensor data from at least one of a camera or a depth sensor, a position of a first finger of the user relative to the surface. Further, the device, presents, using the VI, a first graphical element representing the position of the first finger of the user relative to the surface.

IPC Classes  ?

  • G06F 3/04883 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
  • G06F 3/042 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
  • G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range

73.

DETACHABLE CARTRIDGE LOCKING

      
Application Number US2024042341
Publication Number 2026/039033
Status In Force
Filing Date 2024-08-14
Publication Date 2026-02-19
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Lee, Changwoo
  • Byun, Jiyoung
  • Park, Youngjae

Abstract

A cartridge locking apparatus includes a housing having an engagement member to detachably engage with a frame of an image forming apparatus, a cartridge locking device accommodated in the housing and having a locking mechanism to lock a cartridge of the image forming apparatus at a mounting position, and an electrical connector extruded outside of the housing and connecting the cartridge locking device with an adaptor of the image forming apparatus.

IPC Classes  ?

  • G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
  • B41J 2/175 - Ink supply systems
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

74.

CARTRIDGE WITH FORCE APPLICATION MECHANISM

      
Application Number US2024042548
Publication Number 2026/039037
Status In Force
Filing Date 2024-08-15
Publication Date 2026-02-19
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Mcdaniel, Gabriel S.
  • Pettingill, Justin D.
  • Payne, David M.
  • Luke, Jeffrey H.

Abstract

A cartridge (20, 200, 300, 400, 500, 600, 700, 800) includes a connection structure (120, 220, 320, 484, 420, 520, 620, 720, 820) connected to a rotating shaft (110, 210, 310, 410, 510, 610, 710, 810) of the cartridge, the connection structure including a force receiving structure (120, 220, 222, 224, 226, 320, 322, 326, 482, 484, 420, 422, 520, 620, 720, 820) to receive a first force, and a force application mechanism (550, 650, 750, 850), disposed in the cartridge, to apply a second force opposite in direction to the first force. The rotating shaft is driven based on the first force and the second force.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

75.

CARTRIDGE WITH CONNECTION STRUCTURES

      
Application Number US2024042560
Publication Number 2026/039039
Status In Force
Filing Date 2024-08-15
Publication Date 2026-02-19
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Mcdaniel, Gabriel S.
  • Pettingill, Justin D.
  • Luke, Jeffrey H.
  • Payne, David M.

Abstract

A cartridge (20, 200, 400, 500, 600) connectable to an image forming apparatus IFA (10), includes a connection structure (120, 220, 420, 520, 620) connected to a rotating shaft (120, 220, 420, 520, 620) of the cartridge. The connection structure includes a first structure (120, 220, 420, 520, 620) to receive a driving force and a second structure (226, 426, 526) to locate a braking force transmission mechanism (320) of the IFA in an idle state.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

76.

CARTRIDGE ADAPTORS

      
Application Number US2024042584
Publication Number 2026/039040
Status In Force
Filing Date 2024-08-15
Publication Date 2026-02-19
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Mcdaniel, Gabriel S.
  • Pettingill, Justin D.
  • Payne, David M.
  • Luke, Jeffrey H.

Abstract

An adaptor (180, 280, 380, 580, 680, 780, 880, 980) is to be mounted between a rotating shaft (110, 210, 710) of a cartridge (20, 95) and an image forming apparatus, IFA (10). The adaptor includes a first structure (282, 782) to engage with the IFA, a second structure (226, 326, 526, 626) to hold a braking force transmission mechanism (420, 751, 820) of the IF A in an idle state, and a force receiving structure (322, 522, 622, 722) to receive a driving force from the IF A to drive the rotating shaft.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

77.

LIGHT EMITTING MEMBERS

      
Application Number 19103708
Status Pending
Filing Date 2022-08-17
First Publication Date 2026-02-19
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Kaziev, Boris
  • Efrath, Yuval
  • Shafer, Daniel

Abstract

According to an example, a conditioning device includes a first light emitting member to emit light towards a first segment of a path and a second light emitting member to emit light towards a second segment of a path. The first segment of the path is upstream an engagement point of the path at which the photoconductive surface is to contact a subsequent transfer member and the second region is downstream the engagement point. The light emitted by the first light emitting member is to set the photoconductive surface at a pre-transfer voltage and the light emitted by the second light emitting member is to set the photoconductive surface at a post-transfer voltage greater than the pre-transfer voltage.

IPC Classes  ?

  • G03G 15/043 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitisingCorona discharge devices
  • G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

78.

Device setup/configuration using activation card

      
Application Number 18637445
Grant Number 12556916
Status In Force
Filing Date 2024-04-16
First Publication Date 2026-02-17
Grant Date 2026-02-17
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Kocienda, Kenneth Luke
  • Chaudhri, Imran A.
  • Miller, Paul
  • Brunner, Ralph

Abstract

Embodiments are disclosed for device setup and configuration using an activation card. In some embodiments, a method comprises: sending an activation card to a user, the activation card for setting up or configuring a device for the user using an online service, the activation card including one or more codes; sending the device to the user; receiving activation data from the device, the activation data including or related to the one or more codes; and authenticating the user based on the activation data. In some embodiments, the activation card includes two codes: a smile code that encodes a numeric value in a picture printed on the activation card and an invisible code printed with invisible ink (e.g., IR ink) on the activation card using invisible ink.

IPC Classes  ?

79.

Scaling laser projected user interfaces

      
Application Number 18940762
Grant Number 12554391
Status In Force
Filing Date 2024-11-07
First Publication Date 2026-02-17
Grant Date 2026-02-17
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Kocienda, Kenneth Luke

Abstract

In an example method, a wearable computing device obtains obtain sensor data from one or more sensors, and detects a trigger event based on the sensor data. The trigger event includes a user of the wearable computing device moving an open palm of the user's hand towards the user's face. In response to detecting the trigger event, the wearable computing device obtains a spoken input from the user using or more microphones, and performs one or more operations in accordance with the spoken input.

IPC Classes  ?

  • G06F 3/0487 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
  • G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting

80.

LASER PROJECTED WAYFINDING INTERFACE

      
Application Number 19365167
Status Pending
Filing Date 2025-10-21
First Publication Date 2026-02-12
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Chaudhri, Imran A.
  • Kocienda, Kenneth Luke

Abstract

Systems, methods, devices and non-transitory, computer-readable storage mediums are disclosed for a wearable multimedia device and cloud computing platform with an application ecosystem for processing multimedia data captured by the wearable multimedia device. In an embodiment, a wearable multimedia device determines a plurality of points of interest and, for each of the points of interest, a heading of that point of interest relative to the device, and a distance between that point of interest and the device. The device presents a user interface including a plurality of user interface elements arranged according to one or more curved layers. Each of the user interface elements corresponds to a different one of the points of interest. A position of each of the user interface elements relative to each of the other user interface elements in the user interface is determined based on the first data and the second data.

IPC Classes  ?

  • H04M 1/72409 - User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
  • G06F 1/16 - Constructional details or arrangements
  • G06F 3/042 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
  • G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
  • H04M 1/72457 - User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to geographic location

81.

Electronics fan

      
Application Number 29954043
Grant Number D1112111
Status In Force
Filing Date 2024-07-25
First Publication Date 2026-02-10
Grant Date 2026-02-10
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Little, Joshua Glenn

82.

SURFACE PRINTER SERVICING

      
Application Number US2024040575
Publication Number 2026/029778
Status In Force
Filing Date 2024-08-01
Publication Date 2026-02-05
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Sender Beleta, Jordi
  • Bordone, Maurizio
  • Lopez Moral, Francisco

Abstract

In an example, servicing of a surface printer may be performed at a job site. One or more service areas at a job site may be identified. One of the one or more service areas may be selected. The surface printer may travel to the selected service area. The surface printer may perform servicing at the selected service area.

IPC Classes  ?

  • G06Q 10/20 - Administration of product repair or maintenance
  • G06Q 10/047 - Optimisation of routes or paths, e.g. travelling salesman problem
  • B41J 3/36 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material

83.

DIGITAL SIGNATURE

      
Application Number 18994042
Status Pending
Filing Date 2022-07-15
First Publication Date 2026-01-29
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Panshin, Stephen D.
  • Everest, Paul S.
  • Harmon, Michael

Abstract

A logic circuitry package includes an interface to communicate with a controller and a logic circuit. The logic circuit includes a memory arrangement storing indicated data over which a manufacturing digital signature is computed, a certificate for the controller to verify the manufacturing digital signature, and manufacturing attribute data. The manufacturing attribute data includes at least one indication indicating the indicated data and the manufacturing digital signature. The logic circuit is configured to transmit, to the controller, the manufacturing attribute data in response to at least one first request from the controller. The logic circuit is configured to transmit, to the controller, the certificate and the indicated data in response to at least one second request from the controller.

IPC Classes  ?

  • H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system

84.

CLEANLINESS STATE VISUALIZATIONS

      
Application Number 18995368
Status Pending
Filing Date 2022-07-20
First Publication Date 2026-01-29
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Lu, Meng-Ju
  • Azam, Syed S.
  • Atkinson, Lee Warren

Abstract

In some examples, a method includes detecting, by a processor, bodily contact on a surface based on sensor data. In some examples, the method includes determining, by the processor, a cleanliness state associated with the surface based on the detected bodily contact. In some examples, the method includes generating, by the processor, a visualization of the cleanliness state. In some examples, the method includes outputting the visualization.

IPC Classes  ?

  • G08B 21/24 - Reminder alarms, e.g. anti-loss alarms
  • G06F 3/04845 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
  • G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
  • G08B 21/18 - Status alarms

85.

NEAR-LIGHT ILLUMINATION

      
Application Number 18785682
Status Pending
Filing Date 2024-07-26
First Publication Date 2026-01-29
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Thomas, Iii, Fred Charles
  • Garcia-Reyero Vinas, Santiago
  • Claver, Miles Maxwell
  • Tesdahl, Lisa Marie
  • Huskerson, Aaron Jeffrey

Abstract

The disclosed technology is directed to an illuminator for enabling near-light photometric imaging. In some examples, a near-light photometric imaging apparatus can include an illuminator comprising a lamp that comprises a plurality of light sources, an edge-blending film, and a first light-shaping diffuser. The plurality of light sources can have a color temperature having an approximately constant value as a brightness of the plurality of light sources is changed. The edge-blending film may condition light emitted at an outer perimeter of the lamp to soften a light edge, and the first light-shaping diffuser may comprise a first diffusing angle to diffuse light emitted from an interior region of the lamp to reduce a presence of hotspots in a target area.

IPC Classes  ?

  • F21V 13/12 - Combinations of only three kinds of elements
  • F21V 5/00 - Refractors for light sources
  • F21V 9/14 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing polarised light
  • F21Y 115/10 - Light-emitting diodes [LED]
  • G01J 1/08 - Arrangements of light sources specially adapted for photometry
  • G01J 1/44 - Electric circuits
  • G02B 5/02 - Diffusing elementsAfocal elements

86.

ADVANCING MEDIA TRAILING EDGES

      
Application Number 18994199
Status Pending
Filing Date 2022-07-15
First Publication Date 2026-01-29
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Arteaga Del Arco, Pablo
  • Bel Calavia, Josep Maria
  • Urrutia Nebreda, Martin

Abstract

Examples include a method where position data of a media advancing within a print zone are received at a printer controller and from a media advance sensor. An advance of the media by an upstream media advance mechanism located upstream from the print zone is controlled by the printer controller during a first time period. The advance of the media by a downstream media advance mechanism located downstream from the print zone is controlled by the printer controller during a second time period following the first time period and in function of the received position data, whereby a trailing edge of the media passes between the upstream media advance mechanism and the downstream media advance mechanism during the second time period.

IPC Classes  ?

  • B41J 11/42 - Controlling
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form

87.

DEVICE COVER WITH TOPCOAT LAYER

      
Application Number 18996501
Status Pending
Filing Date 2022-07-19
First Publication Date 2026-01-29
Owner HEWLETT- PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Chiang, Chi-Chun
  • Yeh, Ya-Ting
  • Wu, Kuan-Ting
  • Chen, Yan-Zih

Abstract

An example device housing comprises a substrate, and a topcoat layer including a topcoat formulation disposed on a surface of the substrate. The topcoat formulation includes a polymer, a pigment including zirconium dioxide nanoparticles present in an amount ranging from about 0.3 weight percent to about 5 weight percent of a total weight of the topcoat formulation, and a balance of water.

IPC Classes  ?

  • B05D 7/00 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
  • B05D 7/02 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
  • B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
  • C09D 5/02 - Emulsion paints
  • C09D 7/40 - Additives
  • C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds

88.

ESTABLISHING COMMUNICATION CONNECTIONS

      
Application Number 19349145
Status Pending
Filing Date 2025-10-03
First Publication Date 2026-01-29
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Azam, Syed S.
  • Jackson, Jr., Louis R.
  • Hegde, Deepika
  • Kaplanis, Anthony

Abstract

In an example system comprising a location engine and a protocol engine, the location engine determines a direction of movement between a first device and a second device and the protocol engine establishes a communication connection when a distance between the first device and the second deice is less than a distance designated for automatic connection.

IPC Classes  ?

  • H04W 76/10 - Connection setup
  • H04W 36/30 - Reselection being triggered by specific parameters by measured or perceived connection quality data
  • H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
  • H04W 76/30 - Connection release

89.

Videoconferencing unit

      
Application Number 29966199
Grant Number D1110298
Status In Force
Filing Date 2024-09-30
First Publication Date 2026-01-27
Grant Date 2026-01-27
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Wong, Glenn A.
  • Bhat, Siddhartha
  • Wolff, Stacy L.
  • Massaro, Kevin L.
  • Maciel, Carlos
  • Peck, Toni-Ann
  • Daley, Sean
  • Patil, Rahul Shrikant
  • Senatori, Mark David

90.

ROTATABLE HINGES

      
Application Number 18875524
Status Pending
Filing Date 2022-06-17
First Publication Date 2026-01-22
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Fan, Yao-Wen
  • Chen, Chih Chien
  • Huang, Kuo Chih

Abstract

In some examples, a rotatable hinge can include a center shaft, a top bracket including a central aperture and an offset aperture, a bottom bracket including a central aperture, a collar including a central aperture, a notch, and a channel, and a latching member interfaced with the offset aperture, the latching member including an extension member having a first flange and a column having a second flange, where when the latching member is in a first position, the second flange of the latching member is located in the notch of the collar and when the latching member is in a second position, the second flange of the latching member is located in the channel of the collar such that the top bracket and the latching member are rotatable about the center shaft.

IPC Classes  ?

91.

PRINTING IMAGES ENCODING DATA

      
Application Number US2024038832
Publication Number 2026/019433
Status In Force
Filing Date 2024-07-19
Publication Date 2026-01-22
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Sender Beleta, Jordi
  • Bordone, Maurizio
  • Carmona Calpe, Carles
  • Martin Orue, Eduardo

Abstract

In an example, a surface printer may print an image encoding data to a surface. The surface printer may identify a printhead misfiring condition. The surface printer may receive an image encoding data. The surface printer may select a printing configuration based on the identified printhead misfiring condition. The surface printer may print an image encoding data to a surface according to a selected print configuration.

IPC Classes  ?

  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 3/01 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for special character, e.g. for Chinese characters or barcodes
  • B41J 3/36 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability
  • H04N 1/387 - Composing, repositioning or otherwise modifying originals

92.

WRAP JAM DETECTION FOR FUSER

      
Application Number 18868498
Status Pending
Filing Date 2022-12-13
First Publication Date 2026-01-22
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Oh, Hansang

Abstract

A fuser includes a fusing member, a pressing member facing the fusing member to form a fusing nip, and a wrap jam detection sensor comprising a light emitting portion to irradiate light to the fusing member and a light receiving portion to receive light diffusely reflected from the fusing member.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

93.

Tracking interacting hands using sensor of wearable multimedia device

      
Application Number 18357090
Grant Number 12530087
Status In Force
Filing Date 2023-07-21
First Publication Date 2026-01-20
Grant Date 2026-01-20
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Alpert, Sylvana
  • Brunner, Ralph

Abstract

Systems, methods, devices and non-transitory, computer-readable storage mediums are disclosed for the tracking of interacting hands using a sensor of a wearable multimedia device. In an embodiment, a method comprises: obtaining, with a sensor of a wearable multimedia device, a first frame of two-dimensional (2D) image data and a second frame of three-dimensional (3D) depth data; determining multiple hand regions in the first frame of 2D image data; determining a location of each hand region in the first frame of 2D image data; detecting at least one landmark in each detected hand region; generating a confidence score for each landmark detected in each detected hand region; determining 3D world coordinates for each landmark that is visible in the first frame of the 2D image data; tracking each landmark in 3D world coordinates; and determining an interaction with the hands based on the tracking of each landmark in 3D world coordinates.

IPC Classes  ?

  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
  • G06V 40/20 - Movements or behaviour, e.g. gesture recognition

94.

LYSIS MODULE WITH CLOSED-LOOP CONTROL MECHANISM

      
Application Number US2024037105
Publication Number 2026/015129
Status In Force
Filing Date 2024-07-08
Publication Date 2026-01-15
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor Leoni, Napoleon Jose

Abstract

A system may include a sonotrode to contact a first portion of a lysing chamber to provide ultrasonic energy to the lysing chamber, a heat spreader to contact a second portion of a lysing chamber to provide thermal energy to the lysing chamber, an infrared sensor to measure a temperature of the lysing chamber, and a controller to compare the temperature of the lysing chamber to a temperature profile and control the sonotrode based on the comparison of the temperature of the lysing chamber to the temperature profile.

IPC Classes  ?

  • C12M 1/00 - Apparatus for enzymology or microbiology

95.

MICROFLUIDIC DEVICE WITH SENSOR

      
Application Number US2024037908
Publication Number 2026/015154
Status In Force
Filing Date 2024-07-12
Publication Date 2026-01-15
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Shkolnikov, Viktor
  • Zhu, Daixi Xin
  • Auduong, Alicia
  • Govyadinov, Alexander
  • Kornilovich, Pavel

Abstract

A microfluidic device includes a fluid ejector including a fluid actuator, a microfluidic channel fluidly coupled to the fluid ejector, a sensor positioned along the microfluidic channel, a constriction region positioned between the sensor and the fluid ejector in which an effective cross-sectional area of the microfluidic channel is gradually reduced, and a pair of electrodes positioned in the microfluidic channel between the constriction region and the fluid ejector.

IPC Classes  ?

  • C12M 3/06 - Tissue, human, animal or plant cell, or virus culture apparatus with filtration, ultrafiltration, inverse osmosis or dialysis means
  • C12M 1/42 - Apparatus for the treatment of microorganisms or enzymes with electrical or wave energy, e.g. magnetism, sonic wave

96.

CELL PORATING AND OPTICALLY DETECTING MICROFLUIDIC DEVICES

      
Application Number 18880135
Status Pending
Filing Date 2022-07-15
First Publication Date 2026-01-15
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Ward, Kenneth John
  • Shkolnikov, Viktor

Abstract

Examples are directed to a microfluidic device that includes a reservoir to contain a fluid including at least a cell and at least a molecular probe, a cell-poration region fluidically coupled to the reservoir and including a cell-poration mechanism, and an optical-detection region fluidically coupled to the cell-poration region and including an optically transparent window associated with a wall of the optical-detection region. The microfluidic device further includes a fluid ejector fluidically coupled to the optical-detection region.

IPC Classes  ?

  • C12M 1/42 - Apparatus for the treatment of microorganisms or enzymes with electrical or wave energy, e.g. magnetism, sonic wave
  • C12M 1/00 - Apparatus for enzymology or microbiology
  • C12M 1/34 - Measuring or testing with condition measuring or sensing means, e.g. colony counters
  • C12M 3/06 - Tissue, human, animal or plant cell, or virus culture apparatus with filtration, ultrafiltration, inverse osmosis or dialysis means

97.

IMAGE FORMING APPARATUS WITH IN-LINE SCANNER AND CONTROL METHOD THEREOF

      
Application Number 18994231
Status Pending
Filing Date 2022-12-14
First Publication Date 2026-01-15
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Kim, Taehun
  • Lee, Seungyoul
  • Jo, Gyeonghun
  • Seo, Jungil
  • Seo, Youngsang
  • Lee, Taehyung

Abstract

An example image forming apparatus includes a feed unit, an in-line scanner, and a processor. The feed unit is to feed, to the in-line scanner, a print medium on which an image is formed, the in-line scanner is to scan the fed print medium to generate a scan image, and, in response to the scan image fulfilling a condition, the processor is to control the image forming apparatus to perform an action corresponding to the condition.

IPC Classes  ?

  • H04N 1/44 - Secrecy systems
  • H04N 1/00 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmissionDetails thereof

98.

CHARGING MEMBERS

      
Application Number 18996447
Status Pending
Filing Date 2022-07-29
First Publication Date 2026-01-15
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor
  • Kim, Taehyun
  • Kim, Ara
  • Bae, Yunhyung
  • Yoon, Se Young
  • Ji, Youngphil
  • Ryu, Yong-Sang

Abstract

An example charging member has a conductive support; a conductive elastic body layer on the conductive support; and a surface layer on the conductive elastic body layer, wherein the surface layer includes a binder resin and particles, wherein the surface layer includes a first portion of the binder resin having the particles and a second portion of the binder resin having an absence of the particles, and wherein the second portion has a peak height (Spk)/core roughness depth (Sk) of less than 0.2.

IPC Classes  ?

  • G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitisingCorona discharge devices

99.

FLUIDIC DEVICES WITH SLOTS

      
Application Number US2024037782
Publication Number 2026/015152
Status In Force
Filing Date 2024-07-12
Publication Date 2026-01-15
Owner HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventor
  • Addington, Cary G.
  • Vivekanandan, Parivakam Krishnamurthy
  • Gilmore, Nicholas

Abstract

A method of forming a fluidic device includes providing a substrate including a first layer, a second layer, and a third layer. The first layer includes a target region. The method includes forming a pattern on the third layer such that the pattern is offset from the target region along a first axis, performing, using a laser, a first etching on the second layer to remove a portion of the second layer, and performing a second etching on a portion removed by the first etching to form a slot. The slot includes a first sidewall disposed at a first angle with respect to the first layer and a second sidewall facing the first sidewall and disposed at a second angle with respect to the first layer, the second angle asymmetric to the first angle with respect to a second axis perpendicular to the first axis.

IPC Classes  ?

  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

100.

Chaining message authentication codes

      
Application Number 19122410
Grant Number 12579287
Status In Force
Filing Date 2023-07-31
First Publication Date 2026-01-08
Grant Date 2026-03-17
Owner Hewlett-Packard Development Company, L.P. (USA)
Inventor Panshin, Stephen D.

Abstract

Disclosed herein are systems and methods for authenticated-encryption and authenticated-decryption operations for conducting authenticated-encryption communications between a host device and a peripheral device. A sending device performs authenticated-encryption operations that apply a symmetric encryption algorithm on plaintext to encrypt the data and generate an authentication tag or message authentication code (“MAC”). The sending device sends the ciphertext and a shared subset of the tag to the receiving device, and stores a non-shared subset of the tag in cache. The receiving device performs authenticated-decryption operations that verify the tag and decrypt the ciphertext to recover the data by applying the effective inverse of the symmetric encryption algorithm (or decryption algorithm) and using the known parameters.

IPC Classes  ?

  • G06F 21/60 - Protecting data
  • G06F 21/70 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
  • H04L 9/06 - Arrangements for secret or secure communicationsNetwork security protocols the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
  • H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
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