- All sections
- B - Performing operationstransporting
- B65D - Containers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containersaccessories, closures, or fittings thereforpackaging elementspackages
- B65D 88/30 - Hoppers, i.e. containers having funnel-shaped discharge sections specially adapted to facilitate transportation from one utilisation site to another
Patent holdings for IPC class B65D 88/30
Total number of patents in this class: 180
10-year publication summary
|
22
|
29
|
12
|
13
|
15
|
20
|
6
|
9
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sandbox Enterprises LLC | 139 |
41 |
| Halliburton Energy Services, Inc. | 21242 |
14 |
| Quickthree Technology, LLC | 31 |
11 |
| Owens-Brockway Glass Container Inc. | 798 |
10 |
| Proppant Express Solutions, LLC | 33 |
8 |
| Solaris Oilfield Site Services Operating, LLC | 26 |
6 |
| Liberty Energy Services LLC | 70 |
5 |
| Oren Technologies, LLC | 32 |
4 |
| SandBox Logistics, LLC | 23 |
3 |
| Schlumberger Technology Corporation | 11549 |
2 |
| Black Bow SDR, LLC | 3 |
2 |
| Cargo Cube Systems, LLC | 6 |
2 |
| Dialog Construction Sdn. Bhd. | 2 |
2 |
| Elkhart Plastics, Inc. | 8 |
2 |
| Movex Innovation Inc. | 12 |
2 |
| National Oilwell Varco, L.P. | 1689 |
2 |
| SunCoke Technology and Development LLC | 246 |
2 |
| 543077 Alberta Ltd. | 29 |
2 |
| Ennis-flint, Inc. | 107 |
2 |
| Atlas Sand Company, LLC | 11 |
2 |
| Other owners | 56 |