- 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: 3393
10-year publication summary
|
254
|
240
|
228
|
238
|
231
|
219
|
234
|
225
|
227
|
77
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nisshinbo Holdings Inc. | 365 |
68 |
| Toyota Motor Corporation | 31237 |
62 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12904 |
62 |
| Showa Denko K.K. | 2281 |
57 |
| Hyundai Motor Company | 21406 |
51 |
| NGK Insulators, Ltd. | 4895 |
49 |
| Robert Bosch GmbH | 42354 |
38 |
| National University Corporation Gunma University | 295 |
36 |
| Panasonic Intellectual Property Management Co., Ltd. | 30769 |
34 |
| Centre National de La Recherche Scientifique | 10266 |
33 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10787 |
32 |
| Nissan Motor Co., Ltd. | 12357 |
31 |
| Sumitomo Chemical Company, Limited | 8998 |
30 |
| Bloom Energy Corporation | 648 |
30 |
| Samsung Electronics Co., Ltd. | 143303 |
29 |
| LG Chem, Ltd. | 17526 |
29 |
| 3m Innovative Properties Company | 17856 |
28 |
| Sumitomo Electric Industries, Ltd. | 15277 |
27 |
| Kolon Industries, Inc. | 1624 |
26 |
| Tanaka Kikinzoku Kogyo K.K. | 592 |
25 |
| Other owners | 2616 |