- All sections
- B - Performing operations; transporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; punching metal
- B21D 3/04 - Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes skew to the path of the work
Patent holdings for IPC class B21D 3/04
Total number of patents in this class: 14
10-year publication summary
|
2
|
0
|
0
|
2
|
1
|
3
|
2
|
0
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 5649 |
4 |
| Alleima GmbH | 24 |
2 |
| Aspen Pumps Limited | 133 |
1 |
| Husky Corporation | 69 |
1 |
| Modine Manufacturing Company | 305 |
1 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
1 |
| Sandvik Materials Technology Deutschland GmbH | 60 |
1 |
| SMS Group GmbH | 1029 |
1 |
| Sumitomo Metal Industries, Ltd. | 453 |
1 |
| Kabushiki Kaisha Daido Kikai Seisakusho | 1 |
1 |
| Other owners | 0 |