- 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: 2539
10-year publication summary
|
174
|
174
|
174
|
142
|
143
|
166
|
163
|
153
|
136
|
128
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyota Motor Corporation | 33138 |
92 |
| Hyundai Motor Company | 22533 |
85 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12737 |
64 |
| Nissan Motor Co., Ltd. | 12609 |
58 |
| Cataler Corporation | 577 |
52 |
| Robert Bosch GmbH | 42887 |
51 |
| N.E. Chemcat Corporation | 189 |
47 |
| Johnson Matthey Hydrogen Technologies Limited | 119 |
47 |
| Kolon Industries, Inc. | 1708 |
45 |
| Audi AG | 7386 |
41 |
| Tanaka Kikinzoku Kogyo K.K. | 584 |
40 |
| 3m Innovative Properties Company | 17755 |
36 |
| Kia Motors Corporation | 7747 |
36 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10964 |
35 |
| Nisshinbo Holdings Inc. | 373 |
34 |
| LG Chem, Ltd. | 17674 |
33 |
| Kia Corporation | 10246 |
33 |
| Honda Motor Co., Ltd. | 25776 |
29 |
| Mitsui Mining & Smelting Co., Ltd. | 1512 |
27 |
| Panasonic Intellectual Property Management Co., Ltd. | 32139 |
26 |
| Other owners | 1628 |