- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
Patent holdings for IPC class H01M 8/04302
Total number of patents in this class: 518
10-year publication summary
|
7
|
46
|
66
|
51
|
58
|
42
|
58
|
54
|
75
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hyundai Motor Company | 19021 |
62 |
| Toyota Motor Corporation | 28582 |
55 |
| Nissan Motor Co., Ltd. | 12249 |
45 |
| Robert Bosch GmbH | 40953 |
34 |
| Honda Motor Co., Ltd. | 24537 |
28 |
| Kia Corporation | 6450 |
23 |
| Kia Motors Corporation | 7946 |
20 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
13 |
| Hydrogenics Corporation | 204 |
13 |
| Audi AG | 7153 |
12 |
| Kyocera Corporation | 12735 |
10 |
| AVL List GmbH | 1232 |
9 |
| Intelligent Energy Limited | 464 |
9 |
| cellcentric GmbH & Co. KG | 160 |
8 |
| GM Global Technology Operations LLC | 13620 |
7 |
| Ceres Intellectual Property Company Limited | 250 |
7 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
5 |
| Ford Global Technologies, LLC | 19702 |
5 |
| Zhongshan Broad-Ocean Motor Co., Ltd. | 499 |
5 |
| Mitsubishi Power, Ltd. | 1680 |
5 |
| Other owners | 143 |