- 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: 5538
10-year publication summary
|
264
|
319
|
409
|
373
|
370
|
443
|
487
|
570
|
534
|
284
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Energy Solution, Ltd. | 19136 |
411 |
| Zeon Corporation | 4156 |
348 |
| LG Chem, Ltd. | 17937 |
191 |
| FUJIFILM Corporation | 30543 |
158 |
| Toyota Motor Corporation | 35857 |
148 |
| Panasonic Intellectual Property Management Co., Ltd. | 34080 |
148 |
| Contemporary Amperex Technology Co., Limited | 10065 |
122 |
| Samsung SDI Co., Ltd. | 10671 |
78 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12385 |
76 |
| Murata Manufacturing Co., Ltd. | 25776 |
73 |
| Nissan Motor Co., Ltd. | 12980 |
72 |
| Semiconductor Energy Laboratory Co., Ltd. | 11842 |
65 |
| Daikin Industries, Ltd. | 10511 |
61 |
| Sanyo Electric Co., Ltd. | 3404 |
44 |
| NEC Corporation | 37064 |
42 |
| Toagosei Co., Ltd. | 1026 |
42 |
| Kabushiki Kaisha Toyota Jidoshokki | 1815 |
41 |
| Contemporary Amperex Technology (Hong Kong) Limited | 4022 |
40 |
| Ningde Amperex Technology Limited | 2704 |
37 |
| GM Global Technology Operations LLC | 16170 |
36 |
| Other owners | 3305 |