- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
Patent holdings for IPC class H01M 8/1004
Total number of patents in this class: 2655
10-year publication summary
|
172
|
230
|
218
|
214
|
269
|
285
|
291
|
223
|
249
|
37
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hyundai Motor Company | 23273 |
191 |
| Honda Motor Co., Ltd. | 25773 |
152 |
| Toyota Motor Corporation | 33999 |
138 |
| Kolon Industries, Inc. | 1744 |
125 |
| Robert Bosch GmbH | 43321 |
115 |
| Kia Corporation | 11020 |
94 |
| Kia Motors Corporation | 7738 |
83 |
| LG Chem, Ltd. | 17745 |
75 |
| Audi AG | 7437 |
61 |
| Johnson Matthey Hydrogen Technologies Limited | 129 |
54 |
| Panasonic Intellectual Property Management Co., Ltd. | 33033 |
48 |
| Toray Industries, Inc. | 7016 |
48 |
| Nissan Motor Co., Ltd. | 12698 |
44 |
| GM Global Technology Operations LLC | 15617 |
35 |
| Agc, Inc. | 5162 |
34 |
| 3m Innovative Properties Company | 17596 |
27 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10971 |
23 |
| W. L. Gore & Associates, Inc. | 2716 |
23 |
| Greenerity GmbH | 51 |
23 |
| Volkswagen AG | 7386 |
23 |
| Other owners | 1239 |