- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/42 - Alloys based on zinc
Patent holdings for IPC class H01M 4/42
Total number of patents in this class: 565
10-year publication summary
|
37
|
42
|
36
|
44
|
48
|
42
|
44
|
35
|
31
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Energizer Brands, LLC | 790 |
38 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
28 |
| NGK Insulators, Ltd. | 5172 |
26 |
| Duracell U.S. Operations, Inc. | 390 |
18 |
| Panasonic Corporation | 18751 |
15 |
| Nissan Motor Co., Ltd. | 13028 |
11 |
| Varta Microbattery GmbH | 310 |
10 |
| Urban Electric Power Incorporated | 33 |
9 |
| City University of Hong Kong | 966 |
8 |
| Salient Energy Inc. | 22 |
8 |
| Samsung Electronics Co., Ltd. | 158842 |
7 |
| Samsung SDI Co., Ltd. | 10782 |
7 |
| Maxell, Ltd. | 3079 |
7 |
| Honeycomb Battery Company | 407 |
7 |
| International Business Machines Corporation | 62769 |
6 |
| TDK Corporation | 6960 |
6 |
| Ionic Materials, Inc. | 56 |
6 |
| LG Energy Solution, Ltd. | 19396 |
6 |
| Toyota Motor Corporation | 36092 |
5 |
| Nippon Telegraph and Telephone Corporation | 15933 |
5 |
| Other owners | 332 |