B21D 28/343
Draw punches
Official title: {Draw punches}
B21D28/343 (Draw punches) appears on 64 US grants and 59 published applications in this corpus.
Search patents in B21D- Granted patents
- 64
- Published applications
- 59
- Assignees
- 32
- Inventors
- 102
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 4 |
| 2003 | 1 | 0 |
| 2004 | 3 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 0 | 3 |
| 2013 | 1 | 7 |
| 2014 | 3 | 2 |
| 2015 | 2 | 2 |
| 2016 | 6 | 4 |
| 2017 | 4 | 3 |
| 2018 | 1 | 2 |
| 2019 | 2 | 5 |
| 2020 | 4 | 3 |
| 2021 | 6 | 3 |
| 2022 | 1 | 3 |
| 2023 | 5 | 3 |
| 2024 | 3 | 2 |
| 2025 | 0 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machining tool for box-end wrench and method of machining box-end wrench by using the same28 Jul 2026US 12,691,508 B2
- Punching tool for mobile use10 Feb 2026US 12,544,820 B2Alfra GmbH
- Hydraulic hand-held knockout punch driver3 Dec 2024US 12,157,242 B2Milwaukee Electric Tool Corporation
- Punch set for electrical box23 Jul 2024US 12,046,886 B2Milbank Manufacturing Co.
- Punch and draw stud having multi-start threads, and method of engaging same16 Jul 2024US 12,036,689 B2Emerson Profesional Tools, LLC
- Knockout tools6 Aug 2026US 2026/0225279 A1Black & Decker Inc.
- Multi-punch tool and method of punching hole in a part19 Mar 2026US 2026/0077400 A1
- Portable electric knockout punch18 Dec 2025US 2025/0381590 A1
- Knockout Punch Tool with Draw Stud29 May 2025US 2025/0170635 A1Milwaukee Electric Tool Corporation
- Hydraulic hand-held knockout punch driver13 Mar 2025US 2025/0083353 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Non-circular slug splitter punch24US 4,905,557 AGreenlee Textron Inc. · 1990
- Hole punch apparatus20US 4,495,699 A1985
- Panel punch18US 4,899,447 AGreenlee Textron Inc. · 1990
- Hydraulic manual device18US 6,065,326 AGustav Klauke GmbH · 2000
- Two piece punch with pilot hole locator16US 6,981,327 B2Greenlee Textron Inc. · 2006