- 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: 164
10-year publication summary
|
14
|
8
|
12
|
22
|
13
|
10
|
14
|
12
|
10
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 674 |
9 |
| Mitsui Chemicals, Inc. | 3191 |
7 |
| Nippon Light Metal Company, Ltd. | 656 |
6 |
| DONGWOO FINE-CHEM Co., Ltd. | 1287 |
5 |
| Samsung Electronics Co., Ltd. | 142415 |
4 |
| Applied Materials, Inc. | 18358 |
4 |
| Houghton Technical Corp. | 113 |
4 |
| Novelis Inc. | 722 |
4 |
| Apple Inc. | 53995 |
3 |
| General Electric Company | 17071 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2737 |
3 |
| The Furukawa Electric Co., Ltd. | 3610 |
3 |
| ApS Japan Co., Ltd. | 23 |
3 |
| Christian-albrechts-universitat zu Kiel | 232 |
3 |
| IMEC VZW | 1570 |
3 |
| Honda Motor Co., Ltd. | 25109 |
2 |
| Hyundai Motor Company | 21236 |
2 |
| Kia Motors Corporation | 7763 |
2 |
| BYD Company Limited | 4620 |
2 |
| Constellium Neuf-brisach | 134 |
2 |
| Other owners | 90 |