- All sections
- C - Chemistry; metallurgy
- C25D - Processes for the electrolytic or electrophoretic production of coatings; electroforming; joining workpieces by electrolysis; apparatus therefor
- C25D 21/22 - Regeneration of process solutions by ion-exchange
Patent holdings for IPC class C25D 21/22
Total number of patents in this class: 29
10-year publication summary
|
1
|
4
|
5
|
2
|
2
|
3
|
2
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Atotech Deutschland GmbH | 566 |
4 |
| Novellus Systems, Inc. | 509 |
3 |
| MacDermid Enthone Inc. | 234 |
2 |
| Coventya International GmbH | 2 |
2 |
| Asmpt NEXX, Inc. | 32 |
2 |
| Centre National de La Recherche Scientifique | 10091 |
1 |
| Siemens VAI Metals Technologies SAS | 67 |
1 |
| Lam Research Corporation | 4995 |
1 |
| Henkel AG & Co. KGaA | 10343 |
1 |
| at & S Austria Technologie & Systemtechnik Aktiengesellschaft | 459 |
1 |
| Degremont Technologies AG | 3 |
1 |
| Fuji Shoji Co., Ltd. | 68 |
1 |
| JFE Steel Corporation | 6549 |
1 |
| OMG Electronic Chemicals, Inc. | 4 |
1 |
| Safran Aircraft Engines | 6031 |
1 |
| Tanaka Kikinzoku Kogyo K.K. | 589 |
1 |
| Universite Paul Sabatier Toulouse III | 477 |
1 |
| RIAG Oberflächentechnik AG | 2 |
1 |
| KPM TECH Co., Ltd. | 1 |
1 |
| Biconex GmbH | 1 |
1 |
| Other owners | 1 |