- 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 8/52 - 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 liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
Patent holdings for IPC class C23C 8/52
Total number of patents in this class: 7
10-year publication summary
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3
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
BIOTRONIK AG | 387 |
1 |
MAHLE International GmbH | 2670 |
1 |
MAHLE Metal Leve S/A | 160 |
1 |
Nelumbo Inc. | 40 |
1 |
Toho Titanium Co., Ltd. | 249 |
1 |
Acandis GmbH | 90 |
1 |
Commonwealth Steel Company Pty Ltd | 5 |
1 |
Other owners | 0 |