- 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: 377
10-year publication summary
|
2
|
1
|
4
|
14
|
51
|
28
|
136
|
72
|
45
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 3854 |
28 |
| LG Energy Solution, Ltd. | 10813 |
23 |
| Contemporary Amperex Technology Co., Limited | 5805 |
18 |
| Toray Industries, Inc. | 6652 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
12 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
12 |
| Murata Manufacturing Co., Ltd. | 22355 |
11 |
| GS Yuasa International Ltd. | 1834 |
11 |
| LG Chem, Ltd. | 17205 |
10 |
| Sanyo Electric Co., Ltd. | 3926 |
10 |
| NGK Insulators, Ltd. | 4589 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
8 |
| Daramic, LLC | 207 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
5 |
| Celgard, LLC | 273 |
5 |
| Ningde Amperex Technology Limited | 1512 |
5 |
| Toyota Motor Corporation | 28582 |
4 |
| Shanghai Energy New Materials Technology Co., Ltd. | 86 |
4 |
| Jiangsu Horizon New Energy Tech Co., Ltd. | 18 |
4 |
| GM Global Technology Operations LLC | 13620 |
3 |
| Other owners | 175 |