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  • 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

4
2
5
5
5
0
3
4
2
3
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
ArcelorMittal
2663
4
ArcelorMittal France
69
3
JFE Steel Corporation
7508
3
Nippon Steel Corporation
6843
3
The Boeing Company
20160
2
National Institute of Advanced Industrial Science and Technology
3790
2
Safran Aircraft Engines
6671
2
United States Steel Corporation
172
2
Europe Technologies
19
2
AVIC Manufacturing Technology Institute
11
2
Honda Motor Co., Ltd.
26008
1
SNECMA S.A.
1146
1
ExxonMobil Research And Engineering Company
2425
1
United Technologies Corporation
2220
1
Abbott Cardiovascular Systems, Inc.
1022
1
Caterpillar Inc.
10272
1
Massachusetts Institute of Technology
10239
1
The United States of America as represented by the Secretary of the Navy
2856
1
Dai Nippon Printing Co., Ltd.
4237
1
Schaeffler Technologies AG & Co. KG
10948
1
Other owners 36

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