- 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: 2534
10-year publication summary
|
174
|
174
|
174
|
142
|
143
|
166
|
163
|
153
|
136
|
117
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyota Motor Corporation | 32788 |
91 |
| Hyundai Motor Company | 22257 |
85 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12758 |
66 |
| Nissan Motor Co., Ltd. | 12523 |
58 |
| Cataler Corporation | 579 |
52 |
| Robert Bosch GmbH | 42813 |
51 |
| N.E. Chemcat Corporation | 188 |
47 |
| Johnson Matthey Hydrogen Technologies Limited | 117 |
47 |
| Kolon Industries, Inc. | 1694 |
45 |
| Audi AG | 7375 |
41 |
| Tanaka Kikinzoku Kogyo K.K. | 584 |
40 |
| 3m Innovative Properties Company | 17795 |
36 |
| Kia Motors Corporation | 7751 |
36 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10941 |
35 |
| Nisshinbo Holdings Inc. | 371 |
34 |
| LG Chem, Ltd. | 17644 |
33 |
| Kia Corporation | 9958 |
33 |
| Honda Motor Co., Ltd. | 25425 |
28 |
| Mitsui Mining & Smelting Co., Ltd. | 1502 |
27 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
26 |
| Other owners | 1623 |