- 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 7/02 - Modifying the physical properties of iron or steel by deformation by cold working
Patent holdings for IPC class C21D 7/02
Total number of patents in this class: 187
10-year publication summary
26
|
18
|
16
|
11
|
18
|
14
|
9
|
9
|
10
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
10 |
Outokumpu Oyj | 250 |
9 |
ThyssenKrupp Steel Europe AG | 924 |
8 |
Nippon Steel Corporation | 5649 |
6 |
Salzgitter Flachstahl GmbH | 155 |
6 |
The Boeing Company | 19843 |
3 |
Abbott Cardiovascular Systems, Inc. | 1117 |
3 |
NTN Corporation | 5008 |
3 |
ArcelorMittal | 1887 |
3 |
POSCO | 2222 |
3 |
ThyssenKrupp AG | 3086 |
3 |
Volkswagen AG | 6966 |
3 |
Wieland-Werke AG | 315 |
3 |
voestalpine Böhler Edelstahl GmbH & Co KG | 50 |
3 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
Hitachi Metals, Ltd. | 2175 |
2 |
Robert Bosch GmbH | 40953 |
2 |
Ford Global Technologies, LLC | 19702 |
2 |
ZF Friedrichshafen AG | 6820 |
2 |
Cook Medical Technologies LLC | 3369 |
2 |
Other owners | 109 |