- 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: 330
10-year publication summary
|
4
|
23
|
60
|
38
|
30
|
29
|
27
|
39
|
34
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Motor Co., Ltd. | 12249 |
49 |
| Hyundai Motor Company | 19021 |
36 |
| Robert Bosch GmbH | 40953 |
30 |
| Toyota Motor Corporation | 28582 |
23 |
| Kia Motors Corporation | 7946 |
18 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
14 |
| Kia Corporation | 6450 |
12 |
| Kyocera Corporation | 12735 |
9 |
| Hydrogenics Corporation | 204 |
8 |
| Ceres Intellectual Property Company Limited | 250 |
7 |
| cellcentric GmbH & Co. KG | 160 |
7 |
| Honda Motor Co., Ltd. | 24537 |
6 |
| Intelligent Energy Limited | 464 |
6 |
| Ford Global Technologies, LLC | 19702 |
5 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
5 |
| Audi AG | 7153 |
5 |
| Mitsubishi Power, Ltd. | 1680 |
5 |
| GM Global Technology Operations LLC | 13620 |
4 |
| Daimler AG | 3462 |
4 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
4 |
| Other owners | 73 |