- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
Patent holdings for IPC class H01M 50/451
Total number of patents in this class: 1200
10-year publication summary
|
1
|
4
|
12
|
39
|
78
|
154
|
198
|
211
|
219
|
197
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Energy Solution, Ltd. | 19856 |
197 |
| Samsung SDI Co., Ltd. | 11033 |
54 |
| Panasonic Intellectual Property Management Co., Ltd. | 34685 |
54 |
| Teijin Limited | 1308 |
44 |
| Zeon Corporation | 4182 |
37 |
| Celgard, LLC | 311 |
36 |
| Ningde Amperex Technology Limited | 2898 |
34 |
| LG Chem, Ltd. | 17997 |
33 |
| Contemporary Amperex Technology Co., Limited | 10746 |
33 |
| Asahi Kasei Kabushiki Kaisha | 2876 |
29 |
| SK IE Technology Co., Ltd. | 200 |
26 |
| Contemporary Amperex Technology (Hong Kong) Limited | 4055 |
25 |
| SK Innovation Co., Ltd. | 1508 |
23 |
| Asahi Kasei Battery Separator Corporation | 93 |
23 |
| NGK Insulators, Ltd. | 5169 |
19 |
| Daramic, LLC | 220 |
16 |
| Zhuhai CosMX Battery Co., Ltd. | 749 |
15 |
| Panasonic Energy Co., Ltd. | 1074 |
15 |
| GS Yuasa International Ltd. | 2296 |
14 |
| Toray Industries, Inc. | 7167 |
13 |
| Other owners | 460 |