- 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 7/12 - Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies
Patent holdings for IPC class C21D 7/12
Total number of patents in this class: 45
10-year publication summary
|
5
|
3
|
7
|
3
|
2
|
4
|
0
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6538 |
3 |
| Robert Bosch GmbH | 41717 |
2 |
| Luxembourg Patent Company S.A. | 106 |
2 |
| Montebello Technology Services Ltd. | 8 |
2 |
| Nippon Steel Corporation | 5991 |
2 |
| Outokumpu Oyj | 251 |
2 |
| ThyssenKrupp AG | 3210 |
2 |
| Uhde High Pressure Technologies GmbH | 30 |
2 |
| 1949467 Ontario Inc. | 7 |
2 |
| Weir Group IP Limited | 26 |
2 |
| The Boeing Company | 19901 |
1 |
| Denso Corporation | 23721 |
1 |
| Ford Global Technologies, LLC | 20057 |
1 |
| Mitsubishi Electric Corporation | 44738 |
1 |
| BIOTRONIK AG | 404 |
1 |
| Carrel Innovations Oy | 2 |
1 |
| Dionex Softron GmbH | 117 |
1 |
| Endress+Hauser Flowtec AG | 806 |
1 |
| Hitachi-GE Nuclear Energy, Ltd. | 272 |
1 |
| IBF S.p.A. | 5 |
1 |
| Other owners | 14 |