- 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: 1718
10-year publication summary
|
11
|
8
|
22
|
50
|
104
|
164
|
253
|
299
|
412
|
252
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Twelve Benefit Corporation | 151 |
50 |
| Panasonic Intellectual Property Management Co., Ltd. | 34080 |
45 |
| Siemens Energy Global GmbH & Co. KG | 3402 |
45 |
| Robert Bosch GmbH | 44209 |
41 |
| Mitsubishi Heavy Industries, Ltd. | 9152 |
34 |
| Agc, Inc. | 5557 |
34 |
| Johnson Matthey Hydrogen Technologies Limited | 140 |
34 |
| Toshiba Corporation | 12577 |
29 |
| Toray Industries, Inc. | 7116 |
27 |
| Utility Global, Inc. | 113 |
26 |
| Idemitsu Kosan Co., Ltd. | 4253 |
23 |
| NGK Insulators, Ltd. | 5241 |
21 |
| ENEOS Corporation | 699 |
20 |
| Uop LLC | 4388 |
19 |
| Totalenergies Onetech | 1538 |
19 |
| Honda Motor Co., Ltd. | 26064 |
18 |
| Asahi Kasei Kabushiki Kaisha | 2838 |
18 |
| Hanwha Solutions Corporation | 1183 |
16 |
| Ohmium International, Inc. | 130 |
16 |
| Electric Hydrogen Co. | 157 |
15 |
| Other owners | 1168 |