- 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 4/04 - Processes for removing metallic material from surfaces, not provided for in group or by physical dissolution
Patent holdings for IPC class C23F 4/04
Total number of patents in this class: 39
10-year publication summary
|
7
|
2
|
0
|
1
|
2
|
0
|
1
|
3
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| American Sterilizer Company | 668 |
4 |
| AP Solutions, Inc. | 13 |
4 |
| Seagate Technology LLC | 3970 |
2 |
| FEI Company | 1063 |
2 |
| Hexagon Technology AS | 136 |
2 |
| National University of Singapore | 2608 |
2 |
| Tohoku University | 3039 |
2 |
| Apple Inc. | 59354 |
1 |
| Applied Materials, Inc. | 20601 |
1 |
| Tokyo Electron Limited | 13956 |
1 |
| Samsung Electro-mechanics Co., Ltd. | 6178 |
1 |
| Headway Technologies, Inc. | 678 |
1 |
| Lam Research Corporation | 5709 |
1 |
| The Johns Hopkins University | 5948 |
1 |
| CemeCon AG | 67 |
1 |
| ConocoPhillips Company | 1717 |
1 |
| Daisho Denshi Co., Ltd. | 4 |
1 |
| Danmarks Tekniske Universitet | 1043 |
1 |
| Dynajoin Corporation | 2 |
1 |
| Praxair S.T. Technology, Inc. | 119 |
1 |
| Other owners | 8 |