- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
Patent holdings for IPC class H01M 50/454
Total number of patents in this class: 133
10-year publication summary
|
1
|
2
|
4
|
2
|
6
|
14
|
22
|
20
|
30
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daramic, LLC | 219 |
19 |
| Celgard, LLC | 314 |
10 |
| LG Energy Solution, Ltd. | 15092 |
8 |
| Samsung SDI Co., Ltd. | 8344 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
4 |
| Contemporary Amperex Technology Co., Limited | 6732 |
4 |
| Ningde Amperex Technology Limited | 2133 |
4 |
| TDK Corporation | 6750 |
3 |
| GS Yuasa International Ltd. | 2041 |
3 |
| SK Innovation Co., Ltd. | 1343 |
3 |
| SK IE Technology Co., Ltd. | 186 |
3 |
| Glatfelter Corporation | 69 |
3 |
| Sinoma Lithium Battery Separator Co., Ltd. | 23 |
3 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3612 |
3 |
| Samsung Electronics Co., Ltd. | 146534 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5663 |
2 |
| Florida State University Research Foundation, Inc. | 749 |
2 |
| Hydro-Quebec | 652 |
2 |
| Johns Manville | 956 |
2 |
| Shenzhen Senior Technology Material Co., LTD | 74 |
2 |
| Other owners | 47 |