- 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: 369
10-year publication summary
|
23
|
60
|
38
|
30
|
29
|
27
|
39
|
34
|
46
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Motor Co., Ltd. | 12320 |
49 |
| Robert Bosch GmbH | 41695 |
44 |
| Hyundai Motor Company | 20356 |
38 |
| Toyota Motor Corporation | 30292 |
24 |
| Kia Motors Corporation | 7779 |
18 |
| Panasonic Intellectual Property Management Co., Ltd. | 29567 |
15 |
| Kia Corporation | 8026 |
14 |
| Kyocera Corporation | 13319 |
10 |
| Honda Motor Co., Ltd. | 24855 |
9 |
| Hydrogenics Corporation | 199 |
8 |
| Ceres Intellectual Property Company Limited | 262 |
7 |
| Volvo Truck Corporation | 3084 |
7 |
| cellcentric GmbH & Co. KG | 179 |
7 |
| Ford Global Technologies, LLC | 20039 |
6 |
| Intelligent Energy Limited | 428 |
6 |
| Bayerische Motoren Werke Aktiengesellschaft | 13816 |
5 |
| Audi AG | 7264 |
5 |
| Mitsubishi Power, Ltd. | 1733 |
5 |
| GM Global Technology Operations LLC | 14181 |
4 |
| Daimler AG | 3419 |
4 |
| Other owners | 84 |