- 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: 2368
10-year publication summary
|
195
|
186
|
184
|
184
|
148
|
151
|
179
|
173
|
156
|
39
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyota Motor Corporation | 28582 |
85 |
| Hyundai Motor Company | 19021 |
71 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
66 |
| Nissan Motor Co., Ltd. | 12249 |
64 |
| Cataler Corporation | 533 |
48 |
| N.E. Chemcat Corporation | 193 |
48 |
| Audi AG | 7153 |
43 |
| Robert Bosch GmbH | 40953 |
40 |
| Kolon Industries, Inc. | 1506 |
40 |
| 3m Innovative Properties Company | 18406 |
39 |
| Tanaka Kikinzoku Kogyo K.K. | 589 |
39 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
37 |
| Kia Motors Corporation | 7946 |
37 |
| Johnson Matthey Hydrogen Technologies Limited | 83 |
37 |
| LG Chem, Ltd. | 17205 |
36 |
| Nisshinbo Holdings Inc. | 333 |
30 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
24 |
| Johnson Matthey Fuel Cells Limited | 48 |
24 |
| Mitsui Mining & Smelting Co., Ltd. | 1373 |
24 |
| GM Global Technology Operations LLC | 13620 |
23 |
| Other owners | 1513 |