- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
Patent holdings for IPC class H01M 8/04303
Total number of patents in this class: 400
10-year publication summary
|
23
|
50
|
37
|
30
|
29
|
26
|
41
|
33
|
46
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42721 |
51 |
| Nissan Motor Co., Ltd. | 12520 |
47 |
| Hyundai Motor Company | 22141 |
38 |
| Toyota Motor Corporation | 32542 |
25 |
| Kia Motors Corporation | 7752 |
18 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
15 |
| Kia Corporation | 9834 |
14 |
| Honda Motor Co., Ltd. | 25335 |
10 |
| Kyocera Corporation | 13861 |
10 |
| Volvo Truck Corporation | 3426 |
9 |
| Hydrogenics Corporation | 193 |
8 |
| Ford Global Technologies, LLC | 20668 |
7 |
| Aisan Kogyo Kabushiki Kaisha | 744 |
7 |
| Ceres Intellectual Property Company Limited | 268 |
7 |
| cellcentric GmbH & Co. KG | 183 |
7 |
| Intelligent Energy Limited | 406 |
6 |
| Bayerische Motoren Werke Aktiengesellschaft | 14428 |
5 |
| Audi AG | 7367 |
5 |
| Mitsubishi Power, Ltd. | 1774 |
5 |
| GM Global Technology Operations LLC | 15106 |
4 |
| Other owners | 102 |