- 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 8/54 - Carbo-nitriding
Patent holdings for IPC class C23C 8/54
Total number of patents in this class: 34
10-year publication summary
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1
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2
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1
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4
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1
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1
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1
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2
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dk-lok Corporation | 16 |
4 |
| H.e.f. | 124 |
3 |
| MacLean-Fogg Company | 100 |
3 |
| Robert Bosch GmbH | 41823 |
2 |
| Tokyo Electron Limited | 12127 |
2 |
| GLOBALFOUNDRIES U.S. Inc. | 6435 |
2 |
| Industries Mailhot Inc. | 22 |
2 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2907 |
2 |
| Caterpillar Inc. | 9185 |
1 |
| Empire Technology Development LLC | 1622 |
1 |
| IAP Research, Inc. | 3 |
1 |
| MAHLE International GmbH | 2703 |
1 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
1 |
| Paul Hettich GmbH & Co. KG | 494 |
1 |
| Safran Ceramics | 392 |
1 |
| Swagelok Company | 327 |
1 |
| Tenneco Automotive Operating Company Inc. | 636 |
1 |
| The University of Birmingham | 402 |
1 |
| Safran Landing Systems | 675 |
1 |
| Jiahao Wang | 3 |
1 |
| Other owners | 2 |