- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/2455 - Grouping of fuel cells, e.g. stacking of fuel cells with liquid, solid or electrolyte-charged reactants
Patent holdings for IPC class H01M 8/2455
Total number of patents in this class: 119
10-year publication summary
|
8
|
5
|
19
|
10
|
12
|
17
|
12
|
19
|
14
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ESS Tech, Inc. | 196 |
17 |
| Sumitomo Electric Industries, Ltd. | 14956 |
7 |
| Watt Fuel Cell Corp. | 148 |
5 |
| Seoul National University R&db Foundation | 3302 |
4 |
| Invinity Energy Systems (Canada) Corporation | 9 |
4 |
| Hyundai Motor Company | 20442 |
2 |
| Schaeffler Technologies AG & Co. KG | 9386 |
2 |
| Showa Denko K.K. | 2340 |
2 |
| 0798465 B.C. Ltd. | 5 |
2 |
| Alfaisal University | 42 |
2 |
| The Curators of the University of Missouri | 1000 |
2 |
| Fcet, Inc. | 9 |
2 |
| le System Co., Ltd. | 13 |
2 |
| Saudi Arabian Oil Company | 12423 |
2 |
| Vionx Energy Corporation | 5 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6134 |
2 |
| IFBattery Inc. | 12 |
2 |
| Largo Clean Energy Corp. | 23 |
2 |
| Standard Energy Inc. | 76 |
2 |
| Cambria Geosciences Inc. | 4 |
2 |
| Other owners | 52 |