- 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 8/36 - Solid state diffusion of only non-metal elements into metallic material surfacesChemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
Patent holdings for IPC class C23C 8/36
Total number of patents in this class: 172
10-year publication summary
|
8
|
12
|
8
|
10
|
10
|
9
|
15
|
9
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 18433 |
11 |
| Oerlikon Surface Solutions AG, Pfaffikon | 540 |
5 |
| Smith & Nephew, Inc. | 2694 |
5 |
| Atmospheric Plasma Solutions, Inc. | 31 |
5 |
| Kokusai Electric Corporation | 1968 |
4 |
| Micron Technology, Inc. | 26214 |
3 |
| ALD Vacuum Technologies GmbH | 138 |
3 |
| IHI Corporation | 3413 |
3 |
| Tanaka Limited | 6 |
3 |
| GM Global Technology Operations LLC | 14910 |
2 |
| Tokyo Electron Limited | 12571 |
2 |
| Andritz Iggesund Tools Inc. | 5 |
2 |
| China University of Petroleum (East China) | 369 |
2 |
| Frank's International, LLC | 238 |
2 |
| G & H Technologies LLC | 11 |
2 |
| H.e.f. | 117 |
2 |
| IUCF-HYU (Industry-University Cooperation Foundation Hanyang University) | 1361 |
2 |
| Maschinenfabrik Alfing Kessler GmbH | 51 |
2 |
| Nippon Steel Corporation | 6181 |
2 |
| Plasmatreat GmbH | 81 |
2 |
| Other owners | 108 |