- 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: 2526
10-year publication summary
|
186
|
185
|
184
|
146
|
150
|
179
|
174
|
160
|
137
|
109
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyota Motor Corporation | 32331 |
90 |
| Hyundai Motor Company | 22044 |
84 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12790 |
66 |
| Nissan Motor Co., Ltd. | 12511 |
57 |
| Cataler Corporation | 573 |
52 |
| Robert Bosch GmbH | 42677 |
50 |
| N.E. Chemcat Corporation | 188 |
47 |
| Johnson Matthey Hydrogen Technologies Limited | 115 |
46 |
| Kolon Industries, Inc. | 1685 |
44 |
| Audi AG | 7365 |
41 |
| Tanaka Kikinzoku Kogyo K.K. | 583 |
40 |
| 3m Innovative Properties Company | 17819 |
39 |
| Kia Motors Corporation | 7754 |
36 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10917 |
35 |
| LG Chem, Ltd. | 17639 |
34 |
| Nisshinbo Holdings Inc. | 368 |
34 |
| Kia Corporation | 9732 |
32 |
| Honda Motor Co., Ltd. | 25301 |
29 |
| Mitsui Mining & Smelting Co., Ltd. | 1489 |
27 |
| Panasonic Intellectual Property Management Co., Ltd. | 31515 |
26 |
| Other owners | 1617 |