- All sections
- C - Chemistrymetallurgy
- C21D - Modifying the physical structure of ferrous metalsgeneral devices for heat treatment of ferrous or non-ferrous metals or alloysmaking metal malleable, e.g. by decarburisation or tempering
- C21D 1/46 - Salt baths
Patent holdings for IPC class C21D 1/46
Total number of patents in this class: 26
10-year publication summary
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2
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1
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2
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3
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0
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1
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0
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2
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2
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2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2714 |
6 |
| Dk-lok Corporation | 16 |
3 |
| PARKER NETSUSHORI KOGYO Co., Ltd. | 36 |
2 |
| Hyundai Motor Company | 24808 |
1 |
| NTN Corporation | 4925 |
1 |
| Kia Motors Corporation | 7718 |
1 |
| Asustek Computer Inc. | 1905 |
1 |
| Aktiebolaget SKF | 3142 |
1 |
| Angang Steel Company Limited | 52 |
1 |
| DENTSPLY SIRONA Inc. | 1814 |
1 |
| ILJIN Light Metal Co., Ltd. | 4 |
1 |
| Jiangsu Yonggang Group Co., Ltd. | 15 |
1 |
| Nippon Steel Corporation | 6932 |
1 |
| SCHERDEL INNOTEC Forschungs-und Entwicklungs-GmbH | 35 |
1 |
| Tata Steel Limited | 166 |
1 |
| Weweler Nederland B.V. | 5 |
1 |
| John Cockerill S.A. | 104 |
1 |
| Ansteel Beijing Research Institute Co., Ltd. | 40 |
1 |
| Other owners | 0 |