- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/92 - Metals of platinum group
Patent holdings for IPC class H01M 4/92
Total number of patents in this class: 2648
10-year publication summary
|
185
|
184
|
147
|
151
|
179
|
178
|
161
|
140
|
172
|
113
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyota Motor Corporation | 35992 |
103 |
| Hyundai Motor Company | 24852 |
94 |
| Johnson Matthey Hydrogen Technologies Limited | 167 |
70 |
| Robert Bosch GmbH | 44252 |
56 |
| Nissan Motor Co., Ltd. | 13016 |
52 |
| Kolon Industries, Inc. | 1853 |
52 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12331 |
52 |
| N.E. Chemcat Corporation | 188 |
48 |
| Cataler Corporation | 575 |
47 |
| Kia Corporation | 12587 |
42 |
| Audi AG | 7573 |
41 |
| Tanaka Kikinzoku Kogyo K.K. | 574 |
39 |
| 3m Innovative Properties Company | 17459 |
36 |
| Kia Motors Corporation | 7717 |
36 |
| Nisshinbo Holdings Inc. | 375 |
34 |
| LG Chem, Ltd. | 17956 |
33 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11124 |
33 |
| GM Global Technology Operations LLC | 16205 |
28 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
28 |
| University of Yamanashi | 268 |
27 |
| Other owners | 1697 |