- 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 1/40 - Alkaline compositions for etching other metallic material
Patent holdings for IPC class C23F 1/40
Total number of patents in this class: 74
10-year publication summary
7
|
8
|
5
|
7
|
5
|
6
|
7
|
9
|
4
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Tokuyama Corporation | 1248 |
8 |
FUJIFILM Corporation | 27102 |
7 |
Atotech Deutschland GmbH | 586 |
4 |
Shenzhen Candortech Incorporated Company | 6 |
4 |
Hyundai Motor Company | 19021 |
3 |
E. I. du Pont de Nemours and Company | 4345 |
2 |
Kia Motors Corporation | 7946 |
2 |
EKC Technology, Inc. | 30 |
2 |
Entegris, Inc. | 1736 |
2 |
Kanto Kagaku Kabushiki Kaisha | 88 |
2 |
Tokyo Ohka Kogyo Co., Ltd. | 1481 |
2 |
Toppan Printing Co., Ltd. | 2212 |
2 |
Versum Materials US, LLC | 591 |
2 |
Tech Met, Inc. | 15 |
2 |
Kioxia Corporation | 9847 |
2 |
Samsung Electronics Co., Ltd. | 131630 |
1 |
The Boeing Company | 19843 |
1 |
Sumitomo Electric Industries, Ltd. | 14131 |
1 |
Tokyo Electron Limited | 11599 |
1 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
1 |
Other owners | 23 |