- 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 7/12 - 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
|
3
|
7
|
3
|
2
|
4
|
0
|
0
|
2
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7549 |
3 |
| Robert Bosch GmbH | 44176 |
2 |
| Luxembourg Patent Company S.A. | 97 |
2 |
| Montebello Technology Services Ltd. | 6 |
2 |
| Nippon Steel Corporation | 6895 |
2 |
| Outokumpu Oyj | 265 |
2 |
| ThyssenKrupp AG | 3399 |
2 |
| Uhde High Pressure Technologies GmbH | 32 |
2 |
| 1949467 Ontario Inc. | 7 |
2 |
| Weir Group IP Limited | 31 |
2 |
| The Boeing Company | 20163 |
1 |
| Denso Corporation | 25579 |
1 |
| Ford Global Technologies, LLC | 21524 |
1 |
| Mitsubishi Electric Corporation | 48048 |
1 |
| BIOTRONIK AG | 446 |
1 |
| Carrel Innovations Oy | 2 |
1 |
| Dionex Softron GmbH | 130 |
1 |
| IBF S.p.A. | 5 |
1 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
1 |
| Linde Aktiengesellschaft | 1421 |
1 |
| Other owners | 14 |