- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/18 - Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
Patent holdings for IPC class H01M 8/18
Total number of patents in this class: 3810
10-year publication summary
|
293
|
388
|
357
|
293
|
251
|
287
|
364
|
337
|
281
|
207
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 16368 |
274 |
| ESS Tech, Inc. | 205 |
187 |
| Lockheed Martin Energy, LLC | 152 |
120 |
| Standard Energy Inc. | 118 |
64 |
| LG Chem, Ltd. | 17970 |
61 |
| Panasonic Intellectual Property Management Co., Ltd. | 34471 |
49 |
| Showa Denko K.K. | 2059 |
47 |
| Massachusetts Institute of Technology | 10305 |
45 |
| Rtx Corporation | 10182 |
44 |
| Battelle Memorial Institute | 2610 |
42 |
| Uop LLC | 4407 |
41 |
| Lotte Chemical Corporation | 793 |
40 |
| Cmblu Energy AG | 58 |
35 |
| Form Energy, Inc. | 240 |
28 |
| Robert Bosch GmbH | 44327 |
24 |
| Schaeffler Technologies AG & Co. KG | 11182 |
24 |
| Saudi Arabian Oil Company | 14369 |
24 |
| President and Fellows of Harvard College | 6115 |
23 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 689 |
23 |
| Siemens AG | 23956 |
22 |
| Other owners | 2593 |