- 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: 143
10-year publication summary
|
4
|
4
|
12
|
9
|
8
|
9
|
11
|
11
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Umicore AG & Co. KG | 867 |
7 |
| Toyota Jidosha Kabushiki Kaisha | 983 |
5 |
| Honda Motor Co., Ltd. | 24537 |
4 |
| GM Global Technology Operations LLC | 13620 |
4 |
| Samsung Electronics Co., Ltd. | 131630 |
3 |
| 3m Innovative Properties Company | 18406 |
3 |
| Samsung SDI Co., Ltd. | 6671 |
3 |
| Hyundai Motor Company | 19021 |
3 |
| Audi AG | 7153 |
3 |
| Nrgtek, Inc. | 10 |
3 |
| Saudi Arabian Oil Company | 11322 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
3 |
| Toyota Motor Corporation | 28582 |
2 |
| Robert Bosch GmbH | 40953 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
| Georgia Tech Research Corporation | 2453 |
2 |
| BlackLight Power, Inc. | 11 |
2 |
| Breton SpA | 96 |
2 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1102 |
2 |
| Korea Institute of Energy Research | 803 |
2 |
| Other owners | 83 |