- 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 8/36 - Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical 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: 168
10-year publication summary
12
|
8
|
13
|
8
|
10
|
10
|
9
|
15
|
9
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Applied Materials, Inc. | 16587 |
9 |
Oerlikon Surface Solutions AG, Pfaffikon | 556 |
5 |
Smith & Nephew, Inc. | 2685 |
5 |
Atmospheric Plasma Solutions, Inc. | 30 |
5 |
Kokusai Electric Corporation | 1791 |
4 |
ALD Vacuum Technologies GmbH | 138 |
3 |
IHI Corporation | 3268 |
3 |
Tanaka Limited | 6 |
3 |
Micron Technology, Inc. | 24960 |
2 |
GM Global Technology Operations LLC | 13620 |
2 |
Tokyo Electron Limited | 11599 |
2 |
Andritz Iggesund Tools Inc. | 5 |
2 |
Frank's International, LLC | 241 |
2 |
G & H Technologies LLC | 11 |
2 |
H.e.f. | 127 |
2 |
IUCF-HYU (Industry-University Cooperation Foundation Hanyang University) | 1115 |
2 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
2 |
Maschinenfabrik Alfing Kessler GmbH | 55 |
2 |
Nippon Steel Corporation | 5649 |
2 |
Plasmatreat GmbH | 75 |
2 |
Other owners | 107 |