- All sections
- C - Chemistrymetallurgy
- C23C - Coating metallic materialcoating material with metallic materialsurface treatment of metallic material by diffusion into the surface, by chemical conversion or substitutioncoating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
- C23C 8/04 - Treatment of selected surface areas, e.g. using masks
Patent holdings for IPC class C23C 8/04
Total number of patents in this class: 90
10-year publication summary
|
15
|
13
|
3
|
6
|
6
|
7
|
3
|
3
|
0
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13845 |
9 |
| GM Global Technology Operations LLC | 15150 |
4 |
| Aircraft Gear Corporation | 34 |
3 |
| Areva NP | 212 |
3 |
| Federal-Mogul Burscheid GmbH | 283 |
3 |
| JFE Steel Corporation | 6916 |
3 |
| Nitruvid | 3 |
3 |
| Halliburton Energy Services, Inc. | 20944 |
2 |
| Siemens AG | 24409 |
2 |
| Robert Bosch GmbH | 42813 |
2 |
| Applied Materials, Inc. | 18861 |
2 |
| Japan Display Inc. | 7011 |
2 |
| Dk-lok Corporation | 16 |
2 |
| Hyundai Steel Company | 435 |
2 |
| NHK Spring Co., Ltd. | 1879 |
2 |
| Rtx Corporation | 9437 |
2 |
| Apple Inc. | 55387 |
1 |
| Samsung Display Co., Ltd. | 35171 |
1 |
| Honda Motor Co., Ltd. | 25425 |
1 |
| Ford Motor Company | 2718 |
1 |
| Other owners | 40 |