- All sections
- C - Chemistry; metallurgy
- C25D - Processes for the electrolytic or electrophoretic production of coatings; electroforming; joining workpieces by electrolysis; apparatus therefor
- C25D 21/00 - Processes for servicing or operating cells for electrolytic coating
Patent holdings for IPC class C25D 21/00
Total number of patents in this class: 139
10-year publication summary
|
6
|
5
|
9
|
18
|
17
|
16
|
5
|
14
|
17
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 1951 |
19 |
| Almex PE Inc. | 17 |
7 |
| Novellus Systems, Inc. | 559 |
5 |
| Applied Materials, Inc. | 16587 |
4 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
4 |
| YKK Corporation | 1916 |
4 |
| Tokyo Electron Limited | 11599 |
3 |
| ACM Research (Shanghai) Inc. | 205 |
3 |
| Atotech Deutschland GmbH | 586 |
3 |
| Sumitomo Electric Toyama Co., Ltd. | 97 |
3 |
| Think Laboratory Co., Ltd. | 123 |
3 |
| Chongqing Jimat New Material Technology Co., Ltd. | 20 |
3 |
| International Business Machines Corporation | 60644 |
2 |
| Lam Research Corporation | 4775 |
2 |
| Chuo Seisakusho, Ltd. | 3 |
2 |
| KYB Corporation | 1278 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
2 |
| SPTS Technologies Limited | 131 |
2 |
| Vallourec Oil and Gas France | 450 |
2 |
| Semsysco GmbH | 52 |
2 |
| Other owners | 62 |