- 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 1/44 - Compositions for etching metallic material from a metallic material substrate of different composition
Patent holdings for IPC class C23F 1/44
Total number of patents in this class: 181
10-year publication summary
|
7
|
11
|
8
|
23
|
10
|
15
|
9
|
6
|
9
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Display Co., Ltd. | 37630 |
8 |
| Adeia Semiconductor Solutions LLC | 758 |
7 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 341 |
6 |
| Tata Steel Ijmuiden B.V. | 318 |
6 |
| Atotech Deutschland GmbH | 533 |
5 |
| DONGWOO FINE-CHEM Co., Ltd. | 1404 |
5 |
| Enf Technology Co., Ltd. | 55 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3576 |
5 |
| Rtx Corporation | 9831 |
5 |
| Versum Materials US, LLC | 664 |
4 |
| Sumitomo Electric Industries, Ltd. | 16061 |
3 |
| FUJIFILM Corporation | 30206 |
3 |
| Texas Instruments Incorporated | 19614 |
3 |
| Tokyo Electron Limited | 13465 |
3 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8474 |
3 |
| Oerlikon Surface Solutions AG, Pfaffikon | 549 |
3 |
| Samsung Electronics Co., Ltd. | 153093 |
2 |
| General Electric Company | 13811 |
2 |
| Siemens AG | 24237 |
2 |
| Semiconductor Energy Laboratory Co., Ltd. | 11649 |
2 |
| Other owners | 99 |