- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/88 - Processes of manufacture
Patent holdings for IPC class H01M 4/88
Total number of patents in this class: 4133
10-year publication summary
|
259
|
270
|
302
|
217
|
270
|
272
|
290
|
276
|
257
|
133
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hyundai Motor Company | 22022 |
138 |
| Toyota Motor Corporation | 32231 |
107 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12797 |
92 |
| Toray Industries, Inc. | 6945 |
78 |
| Robert Bosch GmbH | 42684 |
66 |
| Kia Motors Corporation | 7754 |
66 |
| Nissan Motor Co., Ltd. | 12486 |
63 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10912 |
53 |
| Kolon Industries, Inc. | 1687 |
53 |
| Kia Corporation | 9709 |
52 |
| Johnson Matthey Hydrogen Technologies Limited | 114 |
51 |
| 3m Innovative Properties Company | 17819 |
50 |
| LG Chem, Ltd. | 17638 |
50 |
| Audi AG | 7361 |
47 |
| Honda Motor Co., Ltd. | 25274 |
41 |
| Cataler Corporation | 573 |
36 |
| Panasonic Intellectual Property Management Co., Ltd. | 31475 |
35 |
| LG Energy Solution, Ltd. | 15055 |
35 |
| Korea Institute of Science and Technology | 2120 |
34 |
| Showa Denko K.K. | 2226 |
32 |
| Other owners | 2954 |