- All sections
- C - Chemistry; metallurgy
- C21D - Modifying the physical structure of ferrous metals; general devices for heat treatment of ferrous or non-ferrous metals or alloys; making 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: 24
10-year publication summary
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1
|
2
|
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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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
|
|---|---|---|
| ArcelorMittal | 2052 |
6 |
| Dk-lok Corporation | 16 |
3 |
| Hyundai Motor Company | 20403 |
1 |
| NTN Corporation | 4980 |
1 |
| Kia Motors Corporation | 7779 |
1 |
| Asustek Computer Inc. | 1814 |
1 |
| Aktiebolaget SKF | 2834 |
1 |
| DENTSPLY SIRONA Inc. | 1872 |
1 |
| ILJIN Light Metal Co., Ltd. | 6 |
1 |
| Kikuchi Co., Ltd. | 5 |
1 |
| Nippon Steel Corporation | 5991 |
1 |
| PARKER NETSUSHORI KOGYO Co., Ltd. | 35 |
1 |
| SCHERDEL INNOTEC Forschungs-und Entwicklungs-GmbH | 29 |
1 |
| Tata Steel Limited | 190 |
1 |
| Weweler Nederland B.V. | 5 |
1 |
| Zanardi Fonderie S.p.A. | 7 |
1 |
| John Cockerill S.A. | 113 |
1 |
| Other owners | 0 |