- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/139 - Processes of manufacture
Patent holdings for IPC class H01M 4/139
Total number of patents in this class: 5034
10-year publication summary
|
250
|
258
|
314
|
405
|
366
|
358
|
426
|
456
|
553
|
356
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Energy Solution, Ltd. | 15292 |
375 |
| Zeon Corporation | 4077 |
337 |
| LG Chem, Ltd. | 17644 |
185 |
| FUJIFILM Corporation | 29543 |
148 |
| Toyota Motor Corporation | 32788 |
136 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
116 |
| Contemporary Amperex Technology Co., Limited | 7083 |
109 |
| Murata Manufacturing Co., Ltd. | 24713 |
76 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12758 |
75 |
| Nissan Motor Co., Ltd. | 12523 |
65 |
| Semiconductor Energy Laboratory Co., Ltd. | 11475 |
64 |
| Daikin Industries, Ltd. | 10070 |
57 |
| Samsung SDI Co., Ltd. | 8537 |
51 |
| Sanyo Electric Co., Ltd. | 3663 |
44 |
| NEC Corporation | 35935 |
42 |
| Kabushiki Kaisha Toyota Jidoshokki | 1764 |
40 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3743 |
38 |
| API Corporation | 224 |
36 |
| Sion Power Corporation | 295 |
36 |
| Toagosei Co., Ltd. | 974 |
35 |
| Other owners | 2969 |