- 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 10/00 - Modifying the physical properties by methods other than heat treatment or deformation
Patent holdings for IPC class C21D 10/00
Total number of patents in this class: 355
10-year publication summary
|
21
|
33
|
33
|
41
|
40
|
21
|
35
|
29
|
26
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Jiangsu University | 950 |
38 |
| POSCO | 2222 |
22 |
| JFE Steel Corporation | 6067 |
13 |
| POSCO Co., Ltd. | 1059 |
12 |
| Beijing Institute of Technology | 337 |
7 |
| EADS Deutschland GmbH | 382 |
7 |
| Nippon Steel Corporation | 5649 |
7 |
| Guangdong University of Technology | 466 |
6 |
| LSP Technologies, Inc. | 29 |
6 |
| Rtx Corporation | 8674 |
6 |
| Airbus S.A.S. | 819 |
5 |
| Airbus Operations GmbH | 3188 |
5 |
| Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences | 147 |
4 |
| Safran Aircraft Engines | 5739 |
4 |
| Tata Steel Limited | 184 |
4 |
| Wenzhou University | 71 |
4 |
| General Electric Company | 18133 |
3 |
| The Boeing Company | 19843 |
3 |
| Toshiba Corporation | 12017 |
3 |
| Rolls-Royce PLC | 2944 |
3 |
| Other owners | 193 |