- 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: 713
10-year publication summary
|
3
|
2
|
6
|
2
|
15
|
48
|
98
|
126
|
187
|
96
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topsoe A/S | 1045 |
53 |
| Bloom Energy Corporation | 700 |
42 |
| NGK Insulators, Ltd. | 5236 |
40 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
37 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11123 |
37 |
| Schlumberger Canada Limited | 7606 |
27 |
| Schlumberger Technology Corporation | 11818 |
26 |
| Genvia | 51 |
25 |
| Services Petroliers Schlumberger | 6024 |
24 |
| Schlumberger Technology B.v. | 5298 |
23 |
| Mitsubishi Power, Ltd. | 1833 |
21 |
| Kyocera Corporation | 14359 |
20 |
| Ceres Intellectual Property Company Limited | 252 |
19 |
| Niterra Co., Ltd. | 1401 |
17 |
| Ceres Power Limited | 63 |
13 |
| Samsung Electro-mechanics Co., Ltd. | 6083 |
11 |
| Utility Global, Inc. | 112 |
11 |
| Chevron U.S.A. Inc. | 4140 |
10 |
| Linde GmbH | 1360 |
9 |
| Denso Corporation | 25534 |
7 |
| Other owners | 241 |