- 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: 2173
10-year publication summary
|
69
|
164
|
180
|
242
|
224
|
221
|
279
|
298
|
295
|
65
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hyundai Motor Company | 19021 |
148 |
| Toyota Motor Corporation | 28582 |
129 |
| Honda Motor Co., Ltd. | 24537 |
126 |
| Kolon Industries, Inc. | 1506 |
99 |
| Kia Motors Corporation | 7946 |
84 |
| Robert Bosch GmbH | 40953 |
82 |
| LG Chem, Ltd. | 17205 |
74 |
| Audi AG | 7153 |
62 |
| Nissan Motor Co., Ltd. | 12249 |
61 |
| Kia Corporation | 6450 |
50 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
46 |
| Toray Industries, Inc. | 6652 |
42 |
| Johnson Matthey Hydrogen Technologies Limited | 83 |
36 |
| Agc, Inc. | 4029 |
34 |
| 3m Innovative Properties Company | 18406 |
26 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
26 |
| GM Global Technology Operations LLC | 13620 |
24 |
| Volkswagen AG | 6966 |
24 |
| Toppan Printing Co., Ltd. | 2212 |
22 |
| Ballard Power Systems Inc. | 163 |
20 |
| Other owners | 958 |