- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 8/22 - Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
Patent holdings for IPC class H01M 8/22
Total number of patents in this class: 663
10-year publication summary
|
60
|
50
|
46
|
54
|
62
|
34
|
38
|
32
|
52
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyota Motor Corporation | 28582 |
26 |
| FUJIFILM Manufacturing Europe B.V. | 271 |
17 |
| Lockheed Martin Energy, LLC | 136 |
15 |
| Form Energy, Inc. | 156 |
13 |
| Saudi Arabian Oil Company | 11322 |
12 |
| Hyundai Motor Company | 19021 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
11 |
| Samsung Electronics Co., Ltd. | 131630 |
10 |
| Redstack B.V. | 15 |
10 |
| Watt Fuel Cell Corp. | 122 |
10 |
| Massachusetts Institute of Technology | 9795 |
9 |
| Sweetch Energy | 15 |
9 |
| FUJIFILM Imaging Colorants Limited | 233 |
8 |
| Stichting Wetsus Centre of Excellence for Sustainable Water Technology | 39 |
8 |
| Kia Motors Corporation | 7946 |
7 |
| 24M Technologies, Inc. | 186 |
7 |
| Honda Motor Co., Ltd. | 24537 |
6 |
| Centre National de La Recherche Scientifique | 9632 |
6 |
| Robert Bosch GmbH | 40953 |
6 |
| GM Global Technology Operations LLC | 13620 |
6 |
| Other owners | 456 |