- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 50/409 - Separators, membranes or diaphragms characterised by the material
Patent holdings for IPC class H01M 50/409
Total number of patents in this class: 477
10-year publication summary
|
1
|
4
|
14
|
52
|
29
|
155
|
91
|
47
|
47
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Contemporary Amperex Technology Co., Limited | 6108 |
40 |
| Zeon Corporation | 4066 |
34 |
| LG Energy Solution, Ltd. | 14166 |
34 |
| Sanyo Electric Co., Ltd. | 3722 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 30769 |
16 |
| Toray Industries, Inc. | 6865 |
14 |
| NGK Insulators, Ltd. | 4895 |
13 |
| Asahi Kasei Kabushiki Kaisha | 2633 |
13 |
| LG Chem, Ltd. | 17526 |
11 |
| Murata Manufacturing Co., Ltd. | 24226 |
11 |
| Samsung Electronics Co., Ltd. | 143303 |
9 |
| GS Yuasa International Ltd. | 1997 |
9 |
| Ningde Amperex Technology Limited | 1982 |
8 |
| Celgard, LLC | 306 |
7 |
| Daramic, LLC | 216 |
6 |
| Toyota Motor Corporation | 31237 |
5 |
| Sumitomo Chemical Company, Limited | 8998 |
5 |
| Teijin Limited | 1233 |
5 |
| Apple Inc. | 54252 |
4 |
| Samsung SDI Co., Ltd. | 7894 |
4 |
| Other owners | 213 |