- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus therefor
- C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form
Patent holdings for IPC class C25B 13/02
Total number of patents in this class: 583
10-year publication summary
|
40
|
29
|
24
|
22
|
33
|
35
|
48
|
84
|
113
|
90
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Kasei Kabushiki Kaisha | 2666 |
34 |
| Reinz-Dichtungs-GmbH | 279 |
26 |
| Agfa-Gevaert | 287 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 31330 |
14 |
| Toray Industries, Inc. | 6936 |
12 |
| de Nora Permelec Ltd | 159 |
10 |
| Tokuyama Corporation | 1387 |
10 |
| Twelve Benefit Corporation | 146 |
10 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6270 |
8 |
| Johnson Matthey Hydrogen Technologies Limited | 113 |
8 |
| Toshiba Corporation | 12334 |
7 |
| Robert Bosch GmbH | 42674 |
7 |
| Uop LLC | 4244 |
7 |
| Calera Corporation | 106 |
7 |
| Chlorine Engineers Corp., Ltd. | 24 |
7 |
| LG Chem, Ltd. | 17620 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
6 |
| The Governing Council of The University of Toronto, | 1475 |
6 |
| ThyssenKrupp Uhde Chlorine Engineers (Japan) Ltd. | 13 |
6 |
| Agc, Inc. | 4827 |
6 |
| Other owners | 369 |