- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/94 - Non-porous diffusion electrodes, e.g. palladium membranes, ion exchange membranes
Patent holdings for IPC class H01M 4/94
Total number of patents in this class: 140
10-year publication summary
|
4
|
12
|
9
|
7
|
9
|
10
|
11
|
1
|
12
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Umicore AG & Co. KG | 856 |
5 |
| Standard Energy Inc. | 98 |
5 |
| Honda Motor Co., Ltd. | 25352 |
4 |
| Samsung Electronics Co., Ltd. | 147131 |
3 |
| 3m Innovative Properties Company | 17813 |
3 |
| Samsung SDI Co., Ltd. | 8437 |
3 |
| Hyundai Motor Company | 22167 |
3 |
| Audi AG | 7369 |
3 |
| Saudi Arabian Oil Company | 13295 |
3 |
| Washington University | 1620 |
3 |
| Toyota Jidosha Kabushiki Kaisha | 854 |
3 |
| Toyota Motor Corporation | 32599 |
2 |
| Robert Bosch GmbH | 42742 |
2 |
| GM Global Technology Operations LLC | 15114 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10930 |
2 |
| BlackLight Power, Inc. | 10 |
2 |
| Breton SpA | 102 |
2 |
| Brilliant Light Power, Inc. | 64 |
2 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1306 |
2 |
| Korea Institute of Energy Research | 857 |
2 |
| Other owners | 84 |