- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus therefor
- C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
Patent holdings for IPC class C25B 9/23
Total number of patents in this class: 1302
10-year publication summary
|
2
|
7
|
6
|
21
|
44
|
94
|
140
|
221
|
288
|
287
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Twelve Benefit Corporation | 155 |
50 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
41 |
| Siemens Energy Global GmbH & Co. KG | 3011 |
31 |
| Agc, Inc. | 4913 |
26 |
| Johnson Matthey Hydrogen Technologies Limited | 117 |
25 |
| Robert Bosch GmbH | 42813 |
24 |
| Utility Global, Inc. | 101 |
23 |
| Mitsubishi Heavy Industries, Ltd. | 8783 |
21 |
| Idemitsu Kosan Co., Ltd. | 4223 |
20 |
| Asahi Kasei Kabushiki Kaisha | 2684 |
17 |
| NGK Insulators, Ltd. | 5016 |
16 |
| Toray Industries, Inc. | 6976 |
16 |
| Totalenergies Onetech | 1359 |
16 |
| Electric Hydrogen Co. | 163 |
16 |
| Toshiba Corporation | 12472 |
15 |
| Uop LLC | 4241 |
14 |
| Nippon Telegraph and Telephone Corporation | 17371 |
13 |
| Ohmium International, Inc. | 125 |
13 |
| Honda Motor Co., Ltd. | 25425 |
12 |
| Tokuyama Corporation | 1405 |
12 |
| Other owners | 881 |