- 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: 597
10-year publication summary
|
118
|
143
|
87
|
60
|
37
|
23
|
23
|
15
|
11
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lockheed Martin Energy, LLC | 136 |
54 |
| Sumitomo Electric Industries, Ltd. | 14131 |
24 |
| ESS Tech, Inc. | 158 |
22 |
| Raytheon Technologies Corporation | 332 |
21 |
| Massachusetts Institute of Technology | 9795 |
20 |
| LG Chem, Ltd. | 17205 |
18 |
| 24M Technologies, Inc. | 186 |
17 |
| Battelle Memorial Institute | 2356 |
15 |
| Acal Energy Limited | 34 |
14 |
| Samsung Electronics Co., Ltd. | 131630 |
13 |
| Robert Bosch GmbH | 40953 |
8 |
| University of Kentucky Research Foundation | 643 |
7 |
| Primus Power Solutions, Inc. | 28 |
7 |
| United Technologies Corporation | 2328 |
6 |
| University of Southern California | 2016 |
6 |
| Lotte Chemical Corporation | 591 |
6 |
| OCI Company Ltd. | 131 |
6 |
| UChicago Argonne, LLC | 866 |
6 |
| Case Western Reserve University | 1727 |
5 |
| Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C. | 120 |
5 |
| Other owners | 317 |