- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus therefor
- C25B 9/21 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms two or more diaphragms
Patent holdings for IPC class C25B 9/21
Total number of patents in this class: 149
10-year publication summary
|
0
|
0
|
0
|
0
|
1
|
7
|
23
|
38
|
37
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mangrove Water Technologies Ltd. | 31 |
11 |
| Evonik Operations GmbH | 4154 |
10 |
| Evonik Functional Solutions GmbH | 14 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 8783 |
6 |
| Mitsubishi Power, Ltd. | 1784 |
6 |
| Siemens Energy Global GmbH & Co. KG | 3011 |
5 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2384 |
4 |
| Evoqua Water Technologies LLC | 918 |
3 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3994 |
3 |
| Danfoss A/S | 1353 |
3 |
| BASF SE | 20979 |
2 |
| Toyota Motor Corporation | 32788 |
2 |
| Nitto Denko Corporation | 8280 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
2 |
| The Johns Hopkins University | 5709 |
2 |
| W. L. Gore & Associates, Inc. | 2718 |
2 |
| Airbus Defence and Space GmbH | 869 |
2 |
| de Nora Permelec Ltd | 159 |
2 |
| DENTSPLY SIRONA Inc. | 1853 |
2 |
| King Abdullah University of Science and Technology | 1802 |
2 |
| Other owners | 70 |