- 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 8/46 - Carburising of ferrous surfaces
Patent holdings for IPC class C23C 8/46
Total number of patents in this class: 12
10-year publication summary
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1
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3
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1
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0
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2
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1
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1
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0
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1
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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
|
|---|---|---|
| Caterpillar Inc. | 9166 |
1 |
| NTN Corporation | 4976 |
1 |
| Hilti Aktiengesellschaft | 3383 |
1 |
| Aktiebolaget SKF | 2839 |
1 |
| Great Lakes Armor Systems, Inc. | 4 |
1 |
| MAHLE International GmbH | 2705 |
1 |
| NHK Spring Co., Ltd. | 1769 |
1 |
| Nihon Parkerizing Co., Ltd. | 280 |
1 |
| Outokumpu Oyj | 251 |
1 |
| ThyssenKrupp Steel Europe AG | 956 |
1 |
| Tokamak Energy Ltd | 182 |
1 |
| Commonwealth Steel Company Pty Ltd | 5 |
1 |
| Other owners | 0 |