- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/90 - Selection of catalytic material
Patent holdings for IPC class H01M 4/90
Total number of patents in this class: 3414
10-year publication summary
|
254
|
240
|
228
|
237
|
231
|
219
|
235
|
225
|
227
|
96
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nisshinbo Holdings Inc. | 368 |
68 |
| Toyota Motor Corporation | 31819 |
62 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12821 |
62 |
| Showa Denko K.K. | 2249 |
57 |
| Hyundai Motor Company | 21897 |
51 |
| NGK Insulators, Ltd. | 4941 |
49 |
| Robert Bosch GmbH | 42632 |
40 |
| National University Corporation Gunma University | 293 |
36 |
| Centre National de La Recherche Scientifique | 10414 |
35 |
| Panasonic Intellectual Property Management Co., Ltd. | 31221 |
34 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10924 |
33 |
| Nissan Motor Co., Ltd. | 12458 |
31 |
| Bloom Energy Corporation | 661 |
31 |
| Sumitomo Chemical Company, Limited | 9040 |
30 |
| Samsung Electronics Co., Ltd. | 145416 |
29 |
| LG Chem, Ltd. | 17598 |
29 |
| 3m Innovative Properties Company | 17857 |
28 |
| Sumitomo Electric Industries, Ltd. | 15428 |
27 |
| Kolon Industries, Inc. | 1671 |
27 |
| Korea Advanced Institute of Science and Technology | 4364 |
25 |
| Other owners | 2630 |