- 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: 3172
10-year publication summary
|
295
|
254
|
240
|
228
|
238
|
230
|
215
|
228
|
215
|
60
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
66 |
| Showa Denko K.K. | 2539 |
64 |
| Toyota Motor Corporation | 28582 |
62 |
| Nisshinbo Holdings Inc. | 333 |
61 |
| NGK Insulators, Ltd. | 4589 |
46 |
| Hyundai Motor Company | 19021 |
38 |
| National University Corporation Gunma University | 306 |
34 |
| Centre National de La Recherche Scientifique | 9632 |
33 |
| Robert Bosch GmbH | 40953 |
33 |
| Nissan Motor Co., Ltd. | 12249 |
33 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
31 |
| 3m Innovative Properties Company | 18406 |
30 |
| Samsung Electronics Co., Ltd. | 131630 |
29 |
| LG Chem, Ltd. | 17205 |
29 |
| Sumitomo Chemical Company, Limited | 8808 |
29 |
| Bloom Energy Corporation | 590 |
29 |
| Sumitomo Electric Industries, Ltd. | 14131 |
27 |
| Sony Corporation | 32931 |
25 |
| Stc.unm | 699 |
25 |
| Other owners | 2415 |