- 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: 632
10-year publication summary
|
3
|
11
|
13
|
47
|
66
|
88
|
81
|
78
|
95
|
106
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daramic, LLC | 217 |
33 |
| LG Energy Solution, Ltd. | 15682 |
30 |
| Celgard, LLC | 319 |
24 |
| Samsung SDI Co., Ltd. | 8970 |
16 |
| Energizer Brands, LLC | 794 |
12 |
| Nippon Kodoshi Corporation | 84 |
11 |
| Contemporary Amperex Technology Co., Limited | 7517 |
10 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3830 |
10 |
| Toshiba Corporation | 12521 |
9 |
| Hollingsworth & Vose Company | 299 |
9 |
| Ningde Amperex Technology Limited | 2290 |
9 |
| Entek Asia Inc | 20 |
9 |
| Samsung Electronics Co., Ltd. | 148649 |
8 |
| Asahi Kasei Kabushiki Kaisha | 2710 |
8 |
| Johns Manville | 947 |
8 |
| Semiconductor Energy Laboratory Co., Ltd. | 11527 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 32244 |
7 |
| Shenzhen Senior Technology Material Co., LTD | 79 |
7 |
| Maxell, Ltd. | 2864 |
7 |
| CPS Technology Holdings LLC | 740 |
7 |
| Other owners | 391 |