- 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: 506
10-year publication summary
|
1
|
4
|
14
|
52
|
29
|
160
|
94
|
46
|
49
|
22
|
| 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 | 7348 |
41 |
| LG Energy Solution, Ltd. | 15538 |
37 |
| Zeon Corporation | 4118 |
36 |
| Sanyo Electric Co., Ltd. | 3621 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 32139 |
16 |
| Toray Industries, Inc. | 7000 |
14 |
| Asahi Kasei Kabushiki Kaisha | 2706 |
14 |
| NGK Insulators, Ltd. | 5124 |
13 |
| LG Chem, Ltd. | 17674 |
12 |
| Murata Manufacturing Co., Ltd. | 24861 |
11 |
| Samsung Electronics Co., Ltd. | 148173 |
9 |
| Celgard, LLC | 319 |
9 |
| GS Yuasa International Ltd. | 2081 |
9 |
| Ningde Amperex Technology Limited | 2269 |
8 |
| Daramic, LLC | 217 |
7 |
| Teijin Limited | 1260 |
7 |
| Toyota Motor Corporation | 33138 |
5 |
| Sumitomo Chemical Company, Limited | 9090 |
5 |
| Apple Inc. | 55791 |
4 |
| Samsung SDI Co., Ltd. | 8811 |
4 |
| Other owners | 229 |