- 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: 107
10-year publication summary
|
2
|
8
|
5
|
18
|
10
|
12
|
17
|
12
|
19
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ESS Tech, Inc. | 158 |
14 |
| Sumitomo Electric Industries, Ltd. | 14131 |
6 |
| Watt Fuel Cell Corp. | 122 |
5 |
| Seoul National University R&db Foundation | 2976 |
4 |
| Invinity Energy Systems (Canada) Corporation | 9 |
4 |
| Hyundai Motor Company | 19021 |
2 |
| Schaeffler Technologies AG & Co. KG | 8880 |
2 |
| Showa Denko K.K. | 2539 |
2 |
| 0798465 B.C. Ltd. | 5 |
2 |
| Alfaisal University | 41 |
2 |
| The Curators of the University of Missouri | 965 |
2 |
| Fcet, Inc. | 9 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| Vionx Energy Corporation | 5 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
2 |
| Raytheon Technologies Corporation | 332 |
2 |
| Largo Clean Energy Corp. | 23 |
2 |
| Cambria Geosciences Inc. | 2 |
2 |
| The Regents of the University of California | 18943 |
1 |
| International Business Machines Corporation | 60644 |
1 |
| Other owners | 46 |