- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus 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: 626
10-year publication summary
|
0
|
0
|
1
|
1
|
11
|
35
|
76
|
117
|
173
|
44
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topsoe A/S | 1000 |
45 |
| NGK Insulators, Ltd. | 5186 |
40 |
| Bloom Energy Corporation | 671 |
36 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10993 |
31 |
| Mitsubishi Heavy Industries, Ltd. | 9016 |
30 |
| Schlumberger Technology Corporation | 11471 |
22 |
| Schlumberger Canada Limited | 7550 |
22 |
| Services Petroliers Schlumberger | 5976 |
20 |
| Genvia | 43 |
20 |
| Schlumberger Technology B.v. | 5270 |
19 |
| Mitsubishi Power, Ltd. | 1819 |
19 |
| Kyocera Corporation | 14241 |
18 |
| Ceres Intellectual Property Company Limited | 254 |
18 |
| Niterra Co., Ltd. | 1372 |
16 |
| Samsung Electro-mechanics Co., Ltd. | 5833 |
11 |
| Utility Global, Inc. | 110 |
11 |
| Chevron U.S.A. Inc. | 4073 |
10 |
| Linde GmbH | 1335 |
8 |
| Denso Corporation | 25165 |
7 |
| AVL List GmbH | 1328 |
7 |
| Other owners | 216 |