- 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: 2796
10-year publication summary
|
180
|
242
|
224
|
221
|
280
|
299
|
304
|
227
|
260
|
171
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hyundai Motor Company | 24653 |
198 |
| Honda Motor Co., Ltd. | 26025 |
154 |
| Toyota Motor Corporation | 35772 |
146 |
| Kolon Industries, Inc. | 1844 |
141 |
| Robert Bosch GmbH | 44160 |
117 |
| Kia Corporation | 12385 |
102 |
| Kia Motors Corporation | 7718 |
82 |
| LG Chem, Ltd. | 17921 |
75 |
| Audi AG | 7563 |
62 |
| Johnson Matthey Hydrogen Technologies Limited | 140 |
57 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
51 |
| Toray Industries, Inc. | 7113 |
50 |
| Nissan Motor Co., Ltd. | 12964 |
43 |
| GM Global Technology Operations LLC | 16124 |
42 |
| Agc, Inc. | 5524 |
34 |
| 3m Innovative Properties Company | 17478 |
26 |
| W. L. Gore & Associates, Inc. | 2720 |
25 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11123 |
23 |
| Greenerity GmbH | 51 |
23 |
| Volkswagen AG | 7461 |
23 |
| Other owners | 1322 |