China National Petroleum Corporation

China


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Total IP 478
Total IP incl. subs 500 (+ 101 for subs)
Total IP Rank # 2,787
IP Activity Score 3.5/5.0    639
IP Activity Rank # 1,115
IP AS incl. subs 3.2/5.0    658
Dominant Nice Class Construction and mining; install...

Patents

Trademarks

133 7
14 5
311 8
0
 
Last Patent 2025 - Grout free fiber enhanced compos...
First Patent 2001 - Integrated ocean bottom towed ar...
Last Trademark 2007 - KUNLUN
First Trademark 2005 - CNPC

Subsidiaries

3 subsidiaries with IP (95 patents, 6 trademarks)

6 subsidiaries without IP

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2025 Invention Apparatus and method for determining the static proppant-settling-velocity in fracturing fluids. ...
Invention Composition and method for improving the production of petroleum hydrocarbons. A novel surfactan...
Invention Method and device for tracking and identifying open hole section of old well. A method and device...
Invention Composite logging device. A composite logging device, which relates to the technical field of oil...
Invention Low concentration synthetic polymer fracturing fluid with ascorbic acid. A fracturing fluid for ...
Invention Connectivity evaluation method and apparatus for rock pore channel, and server and medium. A conn...
Invention Fluoroelastomers with improved chemical resistance. Co-cured blends of fluoroelastomers of tetraf...
2024 Invention Method and apparatus for recognizing dominant carbonate rock reservoir in complex facies zone, an...
Invention Filtering, coalescence, separation and oil removal system and separation performance monitoring m...
Invention Cage-type dual wedge throttle valve. A cage-type dual wedge throttle valve, comprising: a housing...
Invention Side storage type pipe string conveying device. A side storage type pipe string conveying device,...
Invention Fluid property measurement apparatus and fluid property online measurement method. The present di...
Invention Method for synthesizing dimethyl terephthalate. The present invention provides a method for synth...
Invention High-strength low-molecular polymer gel system, preparation method therefor and use thereof. Prov...
Invention High-temperature-resistant filtrate reducer, water-based drilling fluid and use of the high-tempe...
Invention Variable-diameter device for measuring viscous liquid and viscosity measurement method. Provided ...
Invention Wellhole full-space time-domain electromagnetic detection method and apparatus. The present appli...
Invention Method for depositing thin film on substrate and use thereof, and semiconductor device and use th...
Invention Interface engineering method for perovskite solar cell, and inverted perovskite solar cell and pr...
Invention Perforator and perforation method based on cable-free connection. Disclosed are a perforator and ...
Invention Self-propelled measurement device for downhole data of oil well, and self-propelled measurement m...
Invention Intelligent pressure control system and method based on multi-channel multi-mode self-optimizatio...
Invention Deviated well anisotropic formation three-dimensional induction logging data inversion method and...
Invention While-drilling acoustic auto-tracking wellbore tool and method for using same. A while-drilling a...
Invention Terahertz-based non-metal pipeline defect detection method, system and device. A terahertz-based ...
Invention Toe flap valve for internal corrosion prevention in ccus injection well tubing. An apparatus and...
Invention Absorbent for carbon dioxide capture, and carbon dioxide capturing and absorbing method. An absor...
Invention Adsorber, adsorption system and adsorption method. The present application provides an adsorber, ...
Invention Multi-channel drill pipe having adaptively interconnected channels. A drill pipe having multiple ...
Invention Oil wellbore repair device, system, and method. An oil wellbore repair device, system and method....
Invention Self-adaptive temporary plugging agent for plugging irregular holes, and preparation method there...
Invention Method and apparatus for time-depth conversion of concealed structure in foreland thrust belt wit...
Invention Winding device and method for initial steel wire rope winding on drawworks, and drilling rig. A w...
Invention Temperature and pressure responsive while-drilling plugging material, and preparation method ther...
Invention Grout free fiber enhanced composite liner steel tube for ccus and water injection. A composite li...
Invention Method and apparatus for adjusting energy during pre-stack data merging, and device and storage m...
Invention Rapid dispersion and hydration device for polymer drag reducer. A rapid dispersion and hydration ...
Invention Free surface multi-wave suppression method and apparatus for ocean bottom node data. A free surfa...
Invention Illumination analysis method based on point spread function and observation system optimization m...
Invention Three-component seismic data vector anti-aliasing interpolation reconstruction method and apparat...
Invention Hydraulic control apparatus and method for a downhole tool. The present invention is a hydraulic ...
Invention Grout free fiber enhanced composite liner steel tube for ccus and water injection. A composite l...
Invention Toe flap valve for internal corrosion prevention in ccus injection well tubing. An apparatus for ...
Invention High temperature dissolvable aluminum for oil and gas applications. A dissolvable aluminum alloy ...
Invention High temperature dissolvable aluminum for oil and gas applications. A dissolvable aluminum alloy...
Invention Polycrystalline diamond composite with a toughening agent and the methods of making the same. A s...
Invention Polycrystalline diamond composite with a toughening agent and the methods of making the same. A ...
2023 Invention Velocity identification method and apparatus for interbed multiples. This disclosure discloses a...
2022 Invention Intelligent control method and apparatus for quick-open pressure-bearing device system. An intel...
2007 G/S Solidified gases for industrial purposes, namely, carbonic acid gas and sulphurous acid gas; acid...
G/S Solidified gases for industrial purposes; acids; salts for industrial purposes; benzene-based ac...
G/S Solidified gases for industrial purposes; acids, namely, formic acid and boric acid; salts for in...
2006 G/S Solidified gases for industrial purposes; acids; salts for industrial purposes; benzene-based aci...
2005 G/S Antifreezing fluid; starting fluid for vehicles; fuel-saving preparations; solidified gases for i...
G/S Vehicle greasing; vehicle filling stations. Transport by pipeline; storage of liquefied gas. Prod...
G/S Antifreezing fluid; starting fluid for vehicles; fuel-saving preparations; solidified gases for ...
G/S Solidified gases for industrial purposes, namely, carbonic acid gas, sulphurous acid gas; Acids, ...
G/S Solidified gases for industrial purposes, namely carbonic acid gas, sulphurous acid gas; Acids, n...
G/S Solidified gases for industrial purposes, namely, carbonic acid gas, sulfurous acid gas; Acids, n...