- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus therefor
- C25B 1/46 - Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
Patent holdings for IPC class C25B 1/46
Total number of patents in this class: 305
10-year publication summary
|
20
|
34
|
20
|
28
|
23
|
20
|
34
|
23
|
21
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Kasei Kabushiki Kaisha | 2673 |
23 |
| Agc, Inc. | 4839 |
17 |
| Industrie de Nora S.p.A. | 277 |
14 |
| Covestro Deutschland AG | 2747 |
11 |
| ThyssenKrupp Uhde Chlorine Engineers GmbH | 26 |
9 |
| Asaka Riken Co., Ltd. | 49 |
7 |
| Solvay SA | 993 |
7 |
| ThyssenKrupp Nucera AG & Co. KGaA | 56 |
7 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6274 |
6 |
| de Nora Permelec Ltd | 159 |
5 |
| Diversey, Inc. | 926 |
5 |
| Shandong Dongyue Polymer Material Co., Ltd. | 5 |
5 |
| PPG Industries Ohio, Inc. | 3455 |
4 |
| Calera Corporation | 106 |
4 |
| Saudi Arabian Oil Company | 13155 |
4 |
| Toagosei Co., Ltd. | 970 |
4 |
| Uhdenora S.p.A. | 32 |
4 |
| Asahi Glass Company, Limited | 2786 |
3 |
| Asahi Kasei Chemicals Corporation | 681 |
3 |
| Danmarks Tekniske Universitet | 969 |
3 |
| Other owners | 160 |