- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/20 - Indirect fuel cells, e.g. fuel cells with redox couple being irreversible
Patent holdings for IPC class H01M 8/20
Total number of patents in this class: 596
10-year publication summary
|
87
|
60
|
37
|
23
|
23
|
15
|
13
|
14
|
5
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lockheed Martin Energy, LLC | 152 |
56 |
| Sumitomo Electric Industries, Ltd. | 16331 |
23 |
| ESS Tech, Inc. | 205 |
23 |
| Rtx Corporation | 10141 |
23 |
| Massachusetts Institute of Technology | 10285 |
21 |
| LG Chem, Ltd. | 17956 |
18 |
| 24M Technologies, Inc. | 303 |
18 |
| Battelle Memorial Institute | 2608 |
15 |
| Samsung Electronics Co., Ltd. | 158605 |
13 |
| Acal Energy Limited | 29 |
10 |
| Robert Bosch GmbH | 44252 |
8 |
| University of Kentucky Research Foundation | 720 |
7 |
| Primus Power Solutions, Inc. | 26 |
7 |
| United Technologies Corporation | 2218 |
6 |
| Lotte Chemical Corporation | 791 |
6 |
| OCI Company Ltd. | 169 |
6 |
| UChicago Argonne, LLC | 954 |
6 |
| University of Southern California | 2144 |
5 |
| Case Western Reserve University | 1903 |
5 |
| Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C. | 118 |
5 |
| Other owners | 315 |