- 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: 5550
10-year publication summary
|
264
|
319
|
409
|
373
|
370
|
443
|
487
|
570
|
534
|
297
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Energy Solution, Ltd. | 19239 |
412 |
| Zeon Corporation | 4161 |
352 |
| LG Chem, Ltd. | 17950 |
191 |
| FUJIFILM Corporation | 30594 |
158 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
149 |
| Toyota Motor Corporation | 35927 |
148 |
| Contemporary Amperex Technology Co., Limited | 10216 |
122 |
| Samsung SDI Co., Ltd. | 10719 |
79 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12353 |
76 |
| Murata Manufacturing Co., Ltd. | 25809 |
73 |
| Nissan Motor Co., Ltd. | 13014 |
72 |
| Semiconductor Energy Laboratory Co., Ltd. | 11855 |
65 |
| Daikin Industries, Ltd. | 10502 |
61 |
| Sanyo Electric Co., Ltd. | 3392 |
44 |
| NEC Corporation | 37168 |
42 |
| Toagosei Co., Ltd. | 1027 |
42 |
| Kabushiki Kaisha Toyota Jidoshokki | 1817 |
41 |
| Contemporary Amperex Technology (Hong Kong) Limited | 4024 |
40 |
| Ningde Amperex Technology Limited | 2729 |
37 |
| GM Global Technology Operations LLC | 16188 |
36 |
| Other owners | 3310 |