- 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: 2577
10-year publication summary
|
174
|
174
|
174
|
142
|
143
|
166
|
163
|
153
|
136
|
160
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyota Motor Corporation | 33572 |
94 |
| Hyundai Motor Company | 22888 |
90 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12642 |
65 |
| Nissan Motor Co., Ltd. | 12683 |
58 |
| Robert Bosch GmbH | 43114 |
53 |
| Cataler Corporation | 579 |
52 |
| Kolon Industries, Inc. | 1725 |
48 |
| N.E. Chemcat Corporation | 189 |
47 |
| Johnson Matthey Hydrogen Technologies Limited | 123 |
47 |
| Audi AG | 7402 |
41 |
| Tanaka Kikinzoku Kogyo K.K. | 571 |
39 |
| Kia Corporation | 10617 |
38 |
| 3m Innovative Properties Company | 17717 |
36 |
| Kia Motors Corporation | 7743 |
36 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10954 |
35 |
| Nisshinbo Holdings Inc. | 376 |
34 |
| LG Chem, Ltd. | 17704 |
33 |
| Honda Motor Co., Ltd. | 25780 |
29 |
| Mitsui Mining & Smelting Co., Ltd. | 1509 |
27 |
| University of Yamanashi | 268 |
27 |
| Other owners | 1648 |