- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 50/44 - Fibrous material
Patent holdings for IPC class H01M 50/44
Total number of patents in this class: 597
10-year publication summary
|
3
|
11
|
13
|
47
|
66
|
87
|
80
|
77
|
95
|
78
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daramic, LLC | 219 |
32 |
| LG Energy Solution, Ltd. | 15119 |
29 |
| Celgard, LLC | 314 |
23 |
| Samsung SDI Co., Ltd. | 8385 |
15 |
| Nippon Kodoshi Corporation | 83 |
11 |
| Energizer Brands, LLC | 816 |
10 |
| Toshiba Corporation | 12367 |
9 |
| Hollingsworth & Vose Company | 294 |
9 |
| Entek Asia Inc | 20 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
8 |
| Johns Manville | 959 |
8 |
| Samsung Electronics Co., Ltd. | 146811 |
7 |
| Semiconductor Energy Laboratory Co., Ltd. | 11428 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
7 |
| Contemporary Amperex Technology Co., Limited | 6745 |
7 |
| Ningde Amperex Technology Limited | 2137 |
7 |
| Shenzhen Senior Technology Material Co., LTD | 74 |
7 |
| Maxell, Ltd. | 2804 |
7 |
| CPS Technology Holdings LLC | 727 |
7 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3621 |
7 |
| Other owners | 371 |