- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/52 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
Patent holdings for IPC class H01M 4/52
Total number of patents in this class: 1152
10-year publication summary
|
79
|
85
|
69
|
67
|
72
|
59
|
51
|
46
|
45
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Energy Solution, Ltd. | 16647 |
54 |
| Samsung SDI Co., Ltd. | 9233 |
36 |
| NGK Insulators, Ltd. | 5203 |
31 |
| Sumitomo Metal Mining Co., Ltd. | 1895 |
29 |
| Toyota Motor Corporation | 33931 |
27 |
| Panasonic Corporation | 19882 |
26 |
| Sumitomo Chemical Company, Limited | 9053 |
21 |
| LG Chem, Ltd. | 17744 |
19 |
| Duracell U.S. Operations, Inc. | 399 |
16 |
| Contemporary Amperex Technology Co., Limited | 8462 |
16 |
| Tanaka Chemical Corporation | 136 |
16 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12614 |
16 |
| The Regents of the University of California | 20366 |
15 |
| GS Yuasa International Ltd. | 2146 |
15 |
| Umicore | 705 |
15 |
| HHeLi, LLC | 73 |
15 |
| Honeycomb Battery Company | 395 |
15 |
| TDK Corporation | 6775 |
14 |
| Siemens AG | 24286 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 32968 |
13 |
| Other owners | 730 |