B21D 7/021
Construction of forming members having more than one groove
Official title: {Construction of forming members having more than one groove}
B21D7/021 (Construction of forming members having more than one groove) appears on 72 US grants and 44 published applications in this corpus.
Search patents in B21D- Granted patents
- 72
- Published applications
- 44
- Assignees
- 41
- Inventors
- 108
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 2 |
| 2006 | 3 | 2 |
| 2007 | 3 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 2 | 3 |
| 2017 | 2 | 2 |
| 2018 | 4 | 1 |
| 2019 | 5 | 1 |
| 2020 | 1 | 4 |
| 2021 | 3 | 6 |
| 2022 | 6 | 6 |
| 2023 | 5 | 4 |
| 2024 | 1 | 0 |
| 2025 | 2 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Width-expandable shoe for conduit bending apparatus and an associated method7 Jul 2026US 12,673,354 B1iTool Equipment Holding LLC
- Width-expandable shoe with spacing preset for conduit bending apparatus and an associated method17 Feb 2026US 12,551,940 B1iTool Equipment Holding LLC
- Hand-held conduit bending tool with multiple bending channels26 Aug 2025US 12,397,336 B2Emerson Professional Tools, LLC
- Systems and methods for performing spine surgery18 Mar 2025US 12,251,142 B2NuVasive, Inc.
- Method of bending a conduit2 Jan 2024US 11,858,028 B2Greenlee Tools, Inc.
- Hand-held conduit bending tool with multiple bending channels13 Nov 2025US 2025/0345838 A1Emerson Professional Tools, LLC
- Systems and methods for performing spine surgery3 Jul 2025US 2025/0213280 A1NuVasive, Inc.
- Dual Size Conduit Bender3 Aug 2023US 2023/0241661 A1Temco Industrial, LLC
- Bending machine4 May 2023US 2023/0134903 A1Schwarze-Robitec GmbH
- Hand-held conduit bender with multiple bending channels13 Apr 2023US 2023/0115014 A1Emerson Professional Tools, LLC
Most cited
By later US patents
- Systems and methods for performing spine surgery24US 10,433,893 B1NuVasive, Inc. · 2019
- Multiple curvature bender21US 4,495,788 AEaton-Leonard Corporation · 1985
- Systems and methods for performing spine surgery21US 9,913,669 B1NuVasive, Inc. · 2018
- Tube bending machine20US 4,038,853 A1977
- Multi-function pipe bending machine20US 5,263,350 AFabbrica Macchine Curvatubi Crippa Agostini S.p.A. · 1993