- 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: 130
10-year publication summary
|
12
|
9
|
8
|
9
|
11
|
13
|
1
|
13
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Umicore AG & Co. KG | 855 |
5 |
| Standard Energy Inc. | 114 |
5 |
| Honda Motor Co., Ltd. | 25873 |
4 |
| Samsung Electronics Co., Ltd. | 154120 |
3 |
| 3m Innovative Properties Company | 17509 |
3 |
| Samsung SDI Co., Ltd. | 9902 |
3 |
| Hyundai Motor Company | 23824 |
3 |
| Audi AG | 7480 |
3 |
| Brilliant Light Power, Inc. | 67 |
3 |
| Saudi Arabian Oil Company | 13953 |
3 |
| Washington University | 1711 |
3 |
| Toyota Motor Corporation | 34698 |
2 |
| Robert Bosch GmbH | 43631 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11013 |
2 |
| BlackLight Power, Inc. | 8 |
2 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1423 |
2 |
| Korea Institute of Energy Research | 880 |
2 |
| National University Corporation Hokkaido University | 1349 |
2 |
| Plug Power Inc. | 119 |
2 |
| Toyota Jidosha Kabushiki Kaisha | 654 |
2 |
| Other owners | 74 |