- 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 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
Patent holdings for IPC class C21D 7/13
Total number of patents in this class: 460
10-year publication summary
|
31
|
26
|
35
|
24
|
20
|
36
|
27
|
43
|
32
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2672 |
78 |
| Nippon Steel Corporation | 6871 |
35 |
| ThyssenKrupp Steel Europe AG | 990 |
24 |
| JFE Steel Corporation | 7527 |
21 |
| Baoshan Iron & Steel Co., Ltd. | 1102 |
12 |
| ATI Properties LLC | 200 |
10 |
| POSCO Co., Ltd. | 2012 |
9 |
| Consolidated Metal Products, Inc. | 16 |
8 |
| Voestalpine Metal Forming GmbH | 84 |
8 |
| ArcelorMittal France | 69 |
7 |
| ArcelorMittal Investigacion y Desarrollo SL | 207 |
7 |
| Hyundai Steel Company | 531 |
7 |
| The Boeing Company | 20160 |
6 |
| Nucor Corporation | 418 |
6 |
| California Institute of Technology | 4040 |
5 |
| Magna International Inc. | 1195 |
5 |
| Autotech Engineering S.L. | 185 |
5 |
| Caterpillar Inc. | 10267 |
4 |
| NTN Corporation | 4914 |
4 |
| Northwestern University | 3543 |
4 |
| Other owners | 195 |