- 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 7/02 - 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: 195
10-year publication summary
|
15
|
15
|
9
|
16
|
14
|
7
|
9
|
11
|
14
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7054 |
14 |
| Outokumpu Oyj | 261 |
9 |
| ThyssenKrupp Steel Europe AG | 962 |
9 |
| Nippon Steel Corporation | 6482 |
7 |
| Salzgitter Flachstahl GmbH | 162 |
6 |
| voestalpine Böhler Edelstahl GmbH & Co KG | 54 |
4 |
| The Boeing Company | 20163 |
3 |
| Abbott Cardiovascular Systems, Inc. | 1111 |
3 |
| NTN Corporation | 4969 |
3 |
| ArcelorMittal | 2396 |
3 |
| Baoshan Iron & Steel Co., Ltd. | 990 |
3 |
| Luvata Ohio, Inc. | 32 |
3 |
| Wieland-Werke AG | 348 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8875 |
2 |
| Hitachi Metals, Ltd. | 1957 |
2 |
| Robert Bosch GmbH | 43063 |
2 |
| Ford Global Technologies, LLC | 20932 |
2 |
| Cook Medical Technologies LLC | 3219 |
2 |
| Hilti Aktiengesellschaft | 3535 |
2 |
| Aesculap AG | 1416 |
2 |
| Other owners | 111 |