- 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 3/02 - 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
Patent holdings for IPC class B21D 3/02
Total number of patents in this class: 104
10-year publication summary
|
4
|
4
|
4
|
10
|
7
|
10
|
4
|
4
|
4
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SCHNELL S.p.A. | 84 |
6 |
| Sumitomo Metal Industries, Ltd. | 453 |
5 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
4 |
| United States Steel Corporation | 168 |
4 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
3 |
| Hengyang Weili Rebar Machinery Co., Ltd | 4 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
| Ford Global Technologies, LLC | 19702 |
2 |
| AlcoTec Wire Corporation | 13 |
2 |
| ARKU Maschinenbau GmbH | 29 |
2 |
| Belvac Production Machinery, Inc. | 132 |
2 |
| CITIC Dicastal CO., LTD | 531 |
2 |
| Mitsubishi Materials Corporation | 2378 |
2 |
| Nippon Steel Corporation | 5649 |
2 |
| Prysmian CAVI e Sistemi Energia S.r.l. | 74 |
2 |
| Trinity Bay Equipment Holdings, LLC | 244 |
2 |
| DJI Innovations Pty Ltd | 3 |
2 |
| Daehannetworks Co., Ltd. | 4 |
2 |
| Massive Lab Inc. | 2 |
2 |
| Schlumberger Canada Limited | 6913 |
1 |
| Other owners | 52 |