- All sections
- C - Chemistry; metallurgy
- C23C - Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating 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: 93
10-year publication summary
21
|
16
|
13
|
3
|
6
|
6
|
8
|
2
|
3
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
General Electric Company | 18133 |
10 |
GM Global Technology Operations LLC | 13620 |
4 |
Robert Bosch GmbH | 40953 |
3 |
Aircraft Gear Corporation | 36 |
3 |
Areva NP | 228 |
3 |
Federal-Mogul Burscheid GmbH | 284 |
3 |
JFE Steel Corporation | 6067 |
3 |
Nitruvid | 3 |
3 |
Halliburton Energy Services, Inc. | 20165 |
2 |
Siemens AG | 24990 |
2 |
Toyota Motor Corporation | 28582 |
2 |
Japan Display Inc. | 6202 |
2 |
Dk-lok Corporation | 15 |
2 |
Hyundai Steel Company | 310 |
2 |
NHK Spring Co., Ltd. | 1657 |
2 |
Rtx Corporation | 8674 |
2 |
Apple Inc. | 50209 |
1 |
Samsung Display Co., Ltd. | 30585 |
1 |
Honda Motor Co., Ltd. | 24537 |
1 |
Ford Motor Company | 2817 |
1 |
Other owners | 41 |