- 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 7/00 - Modifying the physical properties of iron or steel by deformation
Patent holdings for IPC class C21D 7/00
Total number of patents in this class: 71
10-year publication summary
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4
|
4
|
2
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5
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5
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5
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0
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2
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4
|
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 | 2134 |
3 |
| ArcelorMittal France | 85 |
3 |
| JFE Steel Corporation | 6684 |
3 |
| Nippon Steel Corporation | 6097 |
3 |
| The Boeing Company | 19958 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3760 |
2 |
| Safran Aircraft Engines | 6183 |
2 |
| Surface Technology Holdings, Ltd. | 27 |
2 |
| United States Steel Corporation | 173 |
2 |
| Europe Technologies | 19 |
2 |
| AVIC Manufacturing Technology Institute | 9 |
2 |
| General Electric Company | 17071 |
1 |
| Honda Motor Co., Ltd. | 25109 |
1 |
| SNECMA S.A. | 1145 |
1 |
| ExxonMobil Research And Engineering Company | 2606 |
1 |
| United Technologies Corporation | 2249 |
1 |
| Abbott Cardiovascular Systems, Inc. | 1116 |
1 |
| Caterpillar Inc. | 9378 |
1 |
| Massachusetts Institute of Technology | 9938 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2737 |
1 |
| Other owners | 36 |