- 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 88/32 - Hoppers, i.e. containers having funnel-shaped discharge sections in multiple arrangement
Patent holdings for IPC class B65D 88/32
Total number of patents in this class: 107
10-year publication summary
|
20
|
18
|
15
|
10
|
7
|
5
|
6
|
1
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sandbox Enterprises LLC | 137 |
29 |
| Proppant Express Solutions, LLC | 31 |
7 |
| Halliburton Energy Services, Inc. | 20924 |
6 |
| Liberty Energy Services LLC | 70 |
6 |
| Owens-Brockway Glass Container Inc. | 766 |
5 |
| Ishida Co., Ltd. | 532 |
3 |
| Solaris Oilfield Site Services Operating, LLC | 25 |
3 |
| Vertical Tank, Inc. | 20 |
3 |
| National Oilwell Varco, L.P. | 1683 |
2 |
| Proton Power, Inc. | 31 |
2 |
| 543077 Alberta Ltd. | 28 |
2 |
| Ennis-flint, Inc. | 100 |
2 |
| Quickthree Technology, LLC | 28 |
2 |
| Feasibility Pty Ltd | 4 |
2 |
| Logichaul Logistics LLC | 6 |
2 |
| S.c.e. NV | 3 |
2 |
| Qualcomm Incorporated | 85914 |
1 |
| Schlumberger Technology Corporation | 10802 |
1 |
| Baker Hughes Incorporated | 5265 |
1 |
| Anubis Manufacturing Consultants Corp. | 2 |
1 |
| Other owners | 25 |