- 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: 3632
10-year publication summary
|
270
|
363
|
343
|
283
|
240
|
272
|
341
|
324
|
268
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15861 |
269 |
| ESS Tech, Inc. | 200 |
182 |
| Lockheed Martin Energy, LLC | 147 |
115 |
| LG Chem, Ltd. | 17714 |
62 |
| Standard Energy Inc. | 110 |
61 |
| Panasonic Intellectual Property Management Co., Ltd. | 32709 |
49 |
| Showa Denko K.K. | 2148 |
47 |
| Massachusetts Institute of Technology | 10168 |
42 |
| Uop LLC | 4258 |
40 |
| Battelle Memorial Institute | 2532 |
40 |
| Lotte Chemical Corporation | 729 |
39 |
| Rtx Corporation | 9646 |
39 |
| Cmblu Energy AG | 56 |
33 |
| Form Energy, Inc. | 235 |
26 |
| Acal Energy Limited | 33 |
24 |
| Robert Bosch GmbH | 43146 |
23 |
| Schaeffler Technologies AG & Co. KG | 10430 |
23 |
| President and Fellows of Harvard College | 6040 |
23 |
| Siemens AG | 24308 |
22 |
| Korea Institute of Energy Research | 870 |
22 |
| Other owners | 2451 |