B21D 28/145
With means for slug retention
Official title: {with means for slug retention, e.g. a groove}
B21D28/145 (With means for slug retention) appears on 19 US grants and 16 published applications in this corpus.
Search patents in B21D- Granted patents
- 19
- Published applications
- 16
- Assignees
- 18
- Inventors
- 37
- Latest grant
- 9 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 3 | 3 |
| 2018 | 1 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Back pressure device for progressive die apparatus and progressive die apparatus provided therewith17 Sep 2019US 10,413,958 B2Kuroda Precision Industries Ltd.
- Apparatus and method for manufacturing laminated iron core12 Feb 2019US 10,201,844 B2Kuroda Precision Industries Ltd.
- Cutting die3 Jul 2018US 10,010,924 B2Amada Holdings Co., Ltd.
- Press forming apparatus and production method of press formed product17 Sep 2026US 2026/0273607 A1Nippon Steel Corporation
- Method for manufacturing stator core and apparatus for manufacturing stator core26 Sep 2024US 2024/0322659 A1Toyota Boshoku Kabushiki Kaisha
- Apparatus for manufacturing laminated core capable of adjusting height of back pressure unit automatically8 Aug 2024US 2024/0266929 A1Bmc Co., Ltd.
- Brake device for the realization of laminar packages for electrical use27 Jul 2023US 2023/0235799 A1Corrada S.p.A.
- Rotating-layering mold and press apparatus comprising rotating-layering mold4 Feb 2021US 2021/0031256 A1Sankyo Seisakusho Co.
Most cited
By later US patents
- Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks21US 4,543,865 AKramski GmbH Prazisionswerkzeuge-Metallwaren · 1985
- Slug-retaining die17US 4,516,450 AWilson Tool Company · 1985
- Prevention of slug pulling in stamping presses12US 5,136,907 AAMP Incorporated · 1992
- Punching machine10US 4,708,042 ASchon & Cei, GmbH · 1987
- Orienting and stacking parts10US 6,968,763 B2International Business Machines Corporation · 2005