- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/0271 - Sealing or supporting means around electrodes, matrices or membranes
Patent holdings for IPC class H01M 8/0271
Total number of patents in this class: 506
10-year publication summary
|
35
|
68
|
85
|
81
|
72
|
28
|
37
|
34
|
34
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2108 |
43 |
| Nissan Motor Co., Ltd. | 12249 |
31 |
| Honda Motor Co., Ltd. | 24537 |
23 |
| Robert Bosch GmbH | 40953 |
22 |
| Sumitomo Electric Industries, Ltd. | 14131 |
15 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
15 |
| Reinz-Dichtungs-GmbH | 245 |
15 |
| Toyota Motor Corporation | 28582 |
13 |
| Hyundai Motor Company | 19021 |
13 |
| NOF Corporation | 194 |
12 |
| Threebond Co., Ltd. | 108 |
11 |
| Audi AG | 7153 |
10 |
| Intelligent Energy Limited | 464 |
10 |
| Kyocera Corporation | 12735 |
9 |
| GM Global Technology Operations LLC | 13620 |
8 |
| Three Bond Co., Ltd. | 209 |
7 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
6 |
| NGK Spark Plug Co., Ltd. | 935 |
6 |
| Powercell Sweden AB | 90 |
6 |
| Other owners | 224 |