- 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: 587
10-year publication summary
|
3
|
12
|
13
|
47
|
69
|
88
|
81
|
78
|
97
|
73
|
| 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. | 15092 |
29 |
| Celgard, LLC | 314 |
23 |
| Samsung SDI Co., Ltd. | 8344 |
15 |
| Nippon Kodoshi Corporation | 83 |
11 |
| Energizer Brands, LLC | 814 |
10 |
| Toshiba Corporation | 12350 |
9 |
| Entek Asia Inc | 20 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
8 |
| Hollingsworth & Vose Company | 295 |
8 |
| Johns Manville | 956 |
8 |
| Samsung Electronics Co., Ltd. | 146534 |
7 |
| Semiconductor Energy Laboratory Co., Ltd. | 11416 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 31515 |
7 |
| Contemporary Amperex Technology Co., Limited | 6732 |
7 |
| Ningde Amperex Technology Limited | 2133 |
7 |
| Shenzhen Senior Technology Material Co., LTD | 74 |
7 |
| Maxell, Ltd. | 2799 |
7 |
| CPS Technology Holdings LLC | 726 |
7 |
| LG Chem, Ltd. | 17639 |
6 |
| Other owners | 363 |