- All sections
- C - Chemistry; metallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metals; apparatus 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: 280
10-year publication summary
|
25
|
20
|
34
|
20
|
28
|
23
|
19
|
33
|
21
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Kasei Kabushiki Kaisha | 2429 |
23 |
| Agc, Inc. | 4029 |
16 |
| Industrie de Nora S.p.A. | 274 |
15 |
| Covestro Deutschland AG | 2429 |
10 |
| ThyssenKrupp Uhde Chlorine Engineers GmbH | 26 |
9 |
| Solvay SA | 1181 |
7 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
6 |
| ThyssenKrupp Nucera AG & Co. KGaA | 27 |
6 |
| Shandong Dongyue Polymer Material Co., Ltd. | 5 |
5 |
| PPG Industries Ohio, Inc. | 3430 |
4 |
| Calera Corporation | 107 |
4 |
| de Nora Permelec Ltd | 152 |
4 |
| Diversey, Inc. | 961 |
4 |
| Toagosei Co., Ltd. | 894 |
4 |
| Uhdenora S.p.A. | 39 |
4 |
| Asahi Glass Company, Limited | 2985 |
3 |
| Asahi Kasei Chemicals Corporation | 809 |
3 |
| Asaka Riken Co., Ltd. | 35 |
3 |
| Evoqua Water Technologies LLC | 904 |
3 |
| Lohas Products GMBH | 8 |
3 |
| Other owners | 144 |