- All sections
- C - Chemistrymetallurgy
- C23F - Non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialinhibiting incrustation in generalmulti-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: 166
10-year publication summary
|
13
|
8
|
12
|
21
|
13
|
10
|
14
|
13
|
10
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 707 |
9 |
| Mitsui Chemicals, Inc. | 3233 |
7 |
| Nippon Light Metal Company, Ltd. | 671 |
6 |
| DONGWOO FINE-CHEM Co., Ltd. | 1379 |
5 |
| Samsung Electronics Co., Ltd. | 148649 |
4 |
| Applied Materials, Inc. | 19119 |
4 |
| Houghton Technical Corp. | 109 |
4 |
| Apple Inc. | 56070 |
3 |
| General Electric Company | 13859 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2797 |
3 |
| The Furukawa Electric Co., Ltd. | 3704 |
3 |
| ApS Japan Co., Ltd. | 24 |
3 |
| Christian-albrechts-universitat zu Kiel | 242 |
3 |
| IMEC VZW | 1679 |
3 |
| Mitsubishi Gas Chemical Company, Inc. | 3494 |
3 |
| Novelis Inc. | 765 |
3 |
| Arconic Technologies LLC | 255 |
3 |
| Honda Motor Co., Ltd. | 25769 |
2 |
| Hyundai Motor Company | 22664 |
2 |
| Kia Motors Corporation | 7743 |
2 |
| Other owners | 91 |