- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/04791 - ConcentrationDensity
Patent holdings for IPC class H01M 8/04791
Total number of patents in this class: 316
10-year publication summary
|
31
|
14
|
21
|
28
|
22
|
24
|
33
|
26
|
36
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44160 |
46 |
| Hyundai Motor Company | 24653 |
27 |
| Kia Motors Corporation | 7718 |
16 |
| Toyota Motor Corporation | 35772 |
11 |
| FuelCell Energy, Inc. | 325 |
8 |
| Kia Corporation | 12385 |
8 |
| ExxonMobil Technology and Engineering Company | 1356 |
7 |
| ExxonMobil Research And Engineering Company | 2422 |
6 |
| GM Global Technology Operations LLC | 16124 |
6 |
| Nissan Motor Co., Ltd. | 12964 |
6 |
| Bloom Energy Corporation | 700 |
6 |
| Hydrogenics Corporation | 188 |
6 |
| Honda Motor Co., Ltd. | 26025 |
5 |
| Kyocera Corporation | 14359 |
5 |
| ESS Tech, Inc. | 201 |
5 |
| MANN+HUMMEL GmbH | 1808 |
5 |
| Uop LLC | 4393 |
4 |
| Bayerische Motoren Werke Aktiengesellschaft | 15272 |
4 |
| Audi AG | 7563 |
4 |
| Intelligent Energy Limited | 374 |
4 |
| Other owners | 127 |