- 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: 3599
10-year publication summary
|
279
|
270
|
363
|
343
|
283
|
240
|
271
|
341
|
324
|
239
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15678 |
266 |
| ESS Tech, Inc. | 200 |
182 |
| Lockheed Martin Energy, LLC | 146 |
114 |
| LG Chem, Ltd. | 17674 |
62 |
| Standard Energy Inc. | 102 |
55 |
| Panasonic Intellectual Property Management Co., Ltd. | 32139 |
48 |
| Showa Denko K.K. | 2192 |
47 |
| Massachusetts Institute of Technology | 10127 |
42 |
| Uop LLC | 4248 |
40 |
| Battelle Memorial Institute | 2486 |
40 |
| Lotte Chemical Corporation | 734 |
39 |
| Rtx Corporation | 9510 |
39 |
| Cmblu Energy AG | 56 |
33 |
| Form Energy, Inc. | 233 |
26 |
| Acal Energy Limited | 33 |
24 |
| Schaeffler Technologies AG & Co. KG | 10067 |
23 |
| President and Fellows of Harvard College | 6013 |
23 |
| Siemens AG | 24350 |
22 |
| Robert Bosch GmbH | 42887 |
22 |
| Korea Institute of Energy Research | 866 |
22 |
| Other owners | 2430 |