- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/04298 - Processes for controlling fuel cells or fuel cell systems
Patent holdings for IPC class H01M 8/04298
Total number of patents in this class: 252
10-year publication summary
|
9
|
32
|
28
|
17
|
19
|
16
|
27
|
41
|
25
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42689 |
23 |
| Toyota Motor Corporation | 32116 |
12 |
| Bloom Energy Corporation | 661 |
8 |
| Hyundai Motor Company | 21987 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
7 |
| A3 Labs LLC | 16 |
7 |
| ESS Tech, Inc. | 201 |
6 |
| Korea Institute of Energy Research | 852 |
6 |
| Cougar Creek Technologies, LLC | 23 |
6 |
| Cummins Inc. | 2577 |
5 |
| Honda Motor Co., Ltd. | 25251 |
4 |
| Kia Motors Corporation | 7754 |
4 |
| AVL List GmbH | 1292 |
4 |
| FuelCell Energy, Inc. | 329 |
4 |
| Sang-a Frontec Co., Ltd. | 19 |
4 |
| General Electric Company | 13780 |
3 |
| LG Chem, Ltd. | 17632 |
3 |
| Hydrogenics Corporation | 192 |
3 |
| Volvo Truck Corporation | 3401 |
3 |
| Lockheed Martin Energy, LLC | 143 |
3 |
| Other owners | 130 |