- 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 1/20 - Acidic compositions for etching aluminium or alloys thereof
Patent holdings for IPC class C23F 1/20
Total number of patents in this class: 156
10-year publication summary
14
|
14
|
8
|
12
|
22
|
13
|
10
|
12
|
12
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
UACJ Corporation | 631 |
9 |
Mitsui Chemicals, Inc. | 3134 |
6 |
Nippon Light Metal Company, Ltd. | 645 |
6 |
DONGWOO FINE-CHEM Co., Ltd. | 1163 |
5 |
Samsung Electronics Co., Ltd. | 131630 |
4 |
Applied Materials, Inc. | 16587 |
4 |
Houghton Technical Corp. | 115 |
4 |
Novelis Inc. | 656 |
4 |
Apple Inc. | 50209 |
3 |
General Electric Company | 18133 |
3 |
The Furukawa Electric Co., Ltd. | 3486 |
3 |
ApS Japan Co., Ltd. | 22 |
3 |
IMEC VZW | 1410 |
3 |
Honda Motor Co., Ltd. | 24537 |
2 |
Hyundai Motor Company | 19021 |
2 |
The United States of America as represented by the Secretary of the Navy | 2734 |
2 |
Kia Motors Corporation | 7946 |
2 |
Christian-albrechts-universitat zu Kiel | 217 |
2 |
Constellium Neuf-brisach | 115 |
2 |
Hanon Systems | 1632 |
2 |
Other owners | 85 |