B21D 7/08
Bending rods, profiles, or tubes: by passing between rollers or through a
Official title: by passing between rollers or through a curved die
B21D7/08 (Bending rods, profiles, or tubes: by passing between rollers or through a) appears on 190 US grants and 147 published applications in this corpus.
Search patents in B21D- Granted patents
- 190
- Published applications
- 147
- Assignees
- 138
- Inventors
- 336
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 8 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 2 |
| 2004 | 3 | 4 |
| 2005 | 0 | 5 |
| 2006 | 3 | 2 |
| 2007 | 3 | 2 |
| 2008 | 1 | 8 |
| 2009 | 1 | 4 |
| 2010 | 0 | 10 |
| 2011 | 3 | 5 |
| 2012 | 10 | 6 |
| 2013 | 2 | 10 |
| 2014 | 8 | 2 |
| 2015 | 2 | 11 |
| 2016 | 3 | 5 |
| 2017 | 11 | 9 |
| 2018 | 6 | 9 |
| 2019 | 8 | 6 |
| 2020 | 8 | 9 |
| 2021 | 6 | 13 |
| 2022 | 10 | 9 |
| 2023 | 9 | 1 |
| 2024 | 3 | 4 |
| 2025 | 4 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Portable electric power tool for bending elongate objects16 Jun 2026US 12,654,215 B2Black & Decker Inc.
- Workpiece processing method and processing device25 Nov 2025US 12,479,018 B2Mitsubishi Heavy Industries, Ltd.
- Method for precision forming by continuous free bending27 May 2025US 12,311,424 B2Nanjing University of Aeronautics and Astronautics
- Machine for working bars and corresponding working method6 May 2025US 12,290,850 B2M. E. P. Macchine Elettroniche Piegatrici SpA
- Method and apparatus for controlling a process for curving elongated pieces and rolling curving machine25 Feb 2025US 12,233,450 B2Promau S.R.L.
- Bending tool5 Mar 2026US 2026/0061472 A1Snap-on Incorporated
- Free bending forming device having variable length of bending deformation zone capable of processing tubes of different outer diameters1 Jan 2026US 2026/0001115 A1Zhejiang University
- Portable electric power tool for bending elongate objects23 Oct 2025US 2025/0326019 A1
- Device and method for beading a tube end11 Sep 2025US 2025/0281960 A1Harro Höfliger Verpackungsmaschinen GmbH
- Roll bending machine and roll bending method5 Jun 2025US 2025/0178052 A1Posco
Most cited
By later US patents
- Isothermal metal forming apparatus89US 3,988,913 AInternational Harvester Company · 1976
- Method and apparatus for roofing51US 4,686,809 A1987
- Ring rolling methods and apparatus39US 4,150,279 AInternational Harvester Company · 1979
- Lace bending apparatus30US 4,391,116 A1983
- Pinch and forming roll assembly for numerically controlled contour forming machines29US 4,080,815 AThe Boeing Company · 1978