- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus therefor
- C25B 9/77 - Assemblies comprising two or more cells of the filter-press type having diaphragms
Patent holdings for IPC class C25B 9/77
Total number of patents in this class: 773
10-year publication summary
|
0
|
2
|
5
|
2
|
31
|
63
|
97
|
160
|
211
|
49
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Energy Global GmbH & Co. KG | 3232 |
39 |
| ThyssenKrupp Nucera AG & Co. KGaA | 78 |
30 |
| Robert Bosch GmbH | 43504 |
29 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10975 |
19 |
| Bloom Energy Corporation | 670 |
18 |
| Asahi Kasei Kabushiki Kaisha | 2766 |
16 |
| Industrie de Nora S.p.A. | 279 |
12 |
| Honda Motor Co., Ltd. | 25840 |
11 |
| Ceres Intellectual Property Company Limited | 257 |
11 |
| Twelve Benefit Corporation | 158 |
11 |
| Topsoe A/S | 993 |
11 |
| Toshiba Corporation | 12698 |
10 |
| Tokuyama Corporation | 1449 |
10 |
| Schlumberger Technology Corporation | 11436 |
9 |
| Samsung Electro-mechanics Co., Ltd. | 5803 |
9 |
| Kyocera Corporation | 14211 |
9 |
| Schaeffler Technologies AG & Co. KG | 10644 |
9 |
| Danfoss A/S | 1386 |
9 |
| Enapter SRL | 37 |
9 |
| Green Hydrogen Systems A/S | 24 |
9 |
| Other owners | 483 |