- 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 8/76 - Carbo-nitriding of ferrous surfaces
Patent holdings for IPC class C23C 8/76
Total number of patents in this class: 11
10-year publication summary
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2
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aktiebolaget SKF | 2846 |
2 |
| H.e.f. | 124 |
2 |
| Commonwealth Steel Company Pty Ltd | 5 |
2 |
| NTN Corporation | 4980 |
1 |
| Frank's International, LLC | 239 |
1 |
| MAHLE International GmbH | 2703 |
1 |
| Aktiebolaget SKF (publ) | 12 |
1 |
| Hydromecanique et Frottement | 94 |
1 |
| Other owners | 0 |