- 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: 4191
10-year publication summary
|
270
|
302
|
217
|
271
|
272
|
290
|
277
|
259
|
235
|
77
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hyundai Motor Company | 23906 |
144 |
| Toyota Motor Corporation | 34794 |
110 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12511 |
81 |
| Toray Industries, Inc. | 7046 |
80 |
| Robert Bosch GmbH | 43646 |
74 |
| Kia Motors Corporation | 7721 |
65 |
| Nissan Motor Co., Ltd. | 12797 |
59 |
| Kia Corporation | 11658 |
59 |
| Kolon Industries, Inc. | 1767 |
56 |
| Johnson Matthey Hydrogen Technologies Limited | 134 |
56 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11020 |
51 |
| Honda Motor Co., Ltd. | 25873 |
49 |
| LG Chem, Ltd. | 17846 |
48 |
| Audi AG | 7483 |
48 |
| 3m Innovative Properties Company | 17507 |
43 |
| Korea Institute of Science and Technology | 2202 |
38 |
| Panasonic Intellectual Property Management Co., Ltd. | 33634 |
36 |
| LG Energy Solution, Ltd. | 17738 |
36 |
| GM Global Technology Operations LLC | 15864 |
34 |
| Showa Denko K.K. | 2095 |
32 |
| Other owners | 2992 |