- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/0444 - ConcentrationDensity
Patent holdings for IPC class H01M 8/0444
Total number of patents in this class: 539
10-year publication summary
|
35
|
41
|
25
|
38
|
55
|
42
|
67
|
61
|
85
|
34
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42170 |
94 |
| Hyundai Motor Company | 21174 |
43 |
| Kia Motors Corporation | 7764 |
21 |
| Toyota Motor Corporation | 30924 |
18 |
| Honda Motor Co., Ltd. | 25101 |
14 |
| FuelCell Energy, Inc. | 330 |
14 |
| Kia Corporation | 8846 |
13 |
| Nissan Motor Co., Ltd. | 12325 |
12 |
| AVL List GmbH | 1274 |
12 |
| Intelligent Energy Limited | 406 |
10 |
| ESS Tech, Inc. | 198 |
9 |
| GM Global Technology Operations LLC | 14645 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 30506 |
7 |
| HORIBA, Ltd. | 796 |
7 |
| Cougar Creek Technologies, LLC | 23 |
7 |
| Bayerische Motoren Werke Aktiengesellschaft | 14146 |
6 |
| Audi AG | 7319 |
6 |
| Bloom Energy Corporation | 640 |
6 |
| Rtx Corporation | 9242 |
6 |
| Siemens AG | 24544 |
5 |
| Other owners | 221 |