- All sections
- C - Chemistry; metallurgy
- C23F - Non-mechanical removal of metallic material from surfaces; inhibiting corrosion of metallic material; inhibiting incrustation in general; multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
- C23F 1/46 - Regeneration of etching compositions
Patent holdings for IPC class C23F 1/46
Total number of patents in this class: 93
10-year publication summary
8
|
6
|
10
|
7
|
4
|
5
|
6
|
6
|
8
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Atotech Deutschland GmbH | 586 |
5 |
Chengdu Honghua Environmental Science & Technology Co., Ltd | 10 |
5 |
Sumitomo Electric Industries, Ltd. | 14131 |
3 |
Tokyo Electron Limited | 11599 |
3 |
MEC Company Ltd. | 76 |
3 |
Sigma Engineering AB | 4 |
3 |
Sumitomo Electric Printed Circuits, Inc. | 267 |
3 |
3m Innovative Properties Company | 18406 |
2 |
Novellus Systems, Inc. | 559 |
2 |
Andritz AG | 218 |
2 |
Aperam | 104 |
2 |
Kanto Kagaku Kabushiki Kaisha | 88 |
2 |
Wuxi Suntech Power Co., Ltd. | 58 |
2 |
Tessenderlo Group | 10 |
2 |
Eve Recycling SARL | 2 |
2 |
Kuttler Automation Systems (Suzhou) Co., Ltd. | 2 |
2 |
Huizhou Zhending Environmental Protection Technology Co., Ltd. | 2 |
2 |
Atotech Deutschland GmbH & Co. KG | 354 |
2 |
BASF SE | 19740 |
1 |
SNECMA S.A. | 1160 |
1 |
Other owners | 44 |