- 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 7/10 - Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
Patent holdings for IPC class C21D 7/10
Total number of patents in this class: 79
10-year publication summary
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7
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7
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4
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5
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6
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2
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9
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3
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1
|
2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6833 |
6 |
| Nippon Steel Corporation | 6231 |
4 |
| Morgan Advanced Ceramics, Inc. | 39 |
3 |
| United States Steel Corporation | 174 |
3 |
| Webco Industries, Inc. | 32 |
3 |
| voestalpine Böhler Edelstahl GmbH & Co KG | 53 |
3 |
| NTN Corporation | 4978 |
2 |
| AK Steel Properties, Inc. | 75 |
2 |
| Groz-Beckert KG | 374 |
2 |
| Renishaw plc | 763 |
2 |
| RLS Merilna Tehnika d.o.o. | 24 |
2 |
| Salzgitter Flachstahl GmbH | 159 |
2 |
| SANYO Special Steel Co., Ltd. | 222 |
2 |
| ThyssenKrupp Steel Europe AG | 954 |
2 |
| Voestalpine Metal Forming GmbH | 77 |
2 |
| Compagnie Generale des Etablissements Michelin | 4743 |
2 |
| Hyundai Motor Company | 21960 |
1 |
| Yazaki Corporation | 6673 |
1 |
| Bridgestone Corporation | 7241 |
1 |
| Kia Motors Corporation | 7755 |
1 |
| Other owners | 33 |