- 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: 504
10-year publication summary
32
|
47
|
37
|
42
|
36
|
44
|
44
|
39
|
40
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Energizer Brands, LLC | 835 |
38 |
Duracell U.S. Operations, Inc. | 432 |
23 |
NGK Insulators, Ltd. | 4589 |
20 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
19 |
Panasonic Corporation | 20786 |
17 |
Nissan Motor Co., Ltd. | 12249 |
11 |
Varta Microbattery GmbH | 289 |
8 |
Urban Electric Power Incorporated | 30 |
8 |
Salient Energy Inc. | 25 |
7 |
Honeycomb Battery Company | 359 |
7 |
Johnson & Johnson Vision Care, Inc. | 1255 |
6 |
International Business Machines Corporation | 60644 |
6 |
Samsung SDI Co., Ltd. | 6671 |
6 |
City University of Hong Kong | 684 |
6 |
Ionic Materials, Inc. | 66 |
6 |
Mitsui Mining & Smelting Co., Ltd. | 1373 |
6 |
LG Energy Solution, Ltd. | 10813 |
6 |
Samsung Electronics Co., Ltd. | 131630 |
5 |
Matsushita Electric Industrial Co., Ltd. | 4724 |
5 |
Nippon Telegraph and Telephone Corporation | 14195 |
5 |
Other owners | 289 |