- All sections
- C - Chemistry; metallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metals; apparatus therefor
- C25B 1/042 - Hydrogen or oxygen by electrolysis of water by electrolysis of steam
Patent holdings for IPC class C25B 1/042
Total number of patents in this class: 308
10-year publication summary
|
1
|
3
|
1
|
5
|
2
|
14
|
46
|
92
|
117
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topsoe A/S | 821 |
30 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10667 |
25 |
| Bloom Energy Corporation | 626 |
25 |
| NGK Insulators, Ltd. | 4782 |
20 |
| Mitsubishi Heavy Industries, Ltd. | 8504 |
16 |
| Ceres Intellectual Property Company Limited | 262 |
14 |
| Samsung Electro-mechanics Co., Ltd. | 5178 |
9 |
| Kyocera Corporation | 13319 |
9 |
| Linde GmbH | 1213 |
9 |
| Mitsubishi Power, Ltd. | 1733 |
9 |
| Utility Global, Inc. | 92 |
8 |
| Schlumberger Technology Corporation | 10217 |
5 |
| Honda Motor Co., Ltd. | 24855 |
5 |
| Haldor Topsøe A/S | 675 |
5 |
| Battelle Energy Alliance, LLC | 564 |
4 |
| FuelCell Energy, Inc. | 328 |
4 |
| Toshiba Energy Systems & Solutions Corp. | 1022 |
4 |
| Dynelectro ApS | 11 |
4 |
| Schlumberger Canada Limited | 7137 |
3 |
| Hitachi, Ltd. | 15177 |
3 |
| Other owners | 97 |