- 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: 192
10-year publication summary
|
18
|
16
|
11
|
18
|
14
|
9
|
9
|
11
|
13
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6827 |
14 |
| Outokumpu Oyj | 261 |
9 |
| ThyssenKrupp Steel Europe AG | 954 |
9 |
| Nippon Steel Corporation | 6220 |
6 |
| Salzgitter Flachstahl GmbH | 158 |
6 |
| The Boeing Company | 20048 |
3 |
| Abbott Cardiovascular Systems, Inc. | 1115 |
3 |
| NTN Corporation | 4981 |
3 |
| ArcelorMittal | 2275 |
3 |
| Baoshan Iron & Steel Co., Ltd. | 961 |
3 |
| POSCO | 2187 |
3 |
| Wieland-Werke AG | 341 |
3 |
| voestalpine Böhler Edelstahl GmbH & Co KG | 52 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8703 |
2 |
| Hitachi Metals, Ltd. | 1983 |
2 |
| Robert Bosch GmbH | 42647 |
2 |
| Ford Global Technologies, LLC | 20532 |
2 |
| Cook Medical Technologies LLC | 3223 |
2 |
| Aperam | 118 |
2 |
| Daido Steel Co., Ltd. | 269 |
2 |
| Other owners | 110 |