B21D 28/14
Dies
Official title: Dies (ejecting or stripping-off devices arranged in punching machines or tools B21D45/00)
B21D28/14 (Dies) appears on 106 US grants and 136 published applications in this corpus.
Search patents in B21D- Granted patents
- 106
- Published applications
- 136
- Assignees
- 95
- Inventors
- 311
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 3 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 2 |
| 2014 | 4 | 5 |
| 2015 | 0 | 7 |
| 2016 | 1 | 5 |
| 2017 | 10 | 10 |
| 2018 | 5 | 9 |
| 2019 | 5 | 12 |
| 2020 | 8 | 8 |
| 2021 | 13 | 9 |
| 2022 | 4 | 9 |
| 2023 | 6 | 7 |
| 2024 | 7 | 10 |
| 2025 | 9 | 11 |
| 2026 | 3 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Floating cutter unit and trimming press processing device29 Sep 2026US 12,746,591 B2Oiles Corporation
- Hot-press molding apparatus, automotive body component, hot-press molding method, and automotive body component manufacturing method30 Jun 2026US 12,667,881 B2G-Tekt Corporation
- Die assembly and method for producing blank using the die assembly27 Jan 2026US 12,533,723 B2Nippon Steel Corporation
- Production method for integrated circuits4 Nov 2025US 12,459,027 B2Texas Instruments Incorporated
- Punch and die assembly23 Sep 2025US 12,420,326 B2Rockhouse International Pty Ltd
- Electrode shearing apparatus8 Oct 2026US 2026/0307132 A1Samsung SDI.Co., Ltd.
- Press forming apparatus and production method of press formed product17 Sep 2026US 2026/0273607 A1Nippon Steel Corporation
- Production method for press formed product6 Aug 2026US 2026/0225144 A1Nippon Steel Corporation
- Structural member and method for manufacturing same16 Jul 2026US 2026/0199953 A1Nippon Steel Corporation
- Die cut device and method for shearing with same16 Jul 2026US 2026/0199954 A1Grabber Construction Products, Inc.
Most cited
By later US patents
- Adjustable form tool head50US 5,020,407 A1991
- Circuit board, method of making the circuit board and improved die for making said board29US 3,990,142 AJerobee Industries, Inc. · 1976
- Modular punch apparatus for punching complex shapes from a metal ribbon or tape23US 4,836,071 AW. C. Heraeus GmbH · 1989
- Press for punching and cutting plate-shaped workpieces, especially sheet metal workpieces22US 4,250,784 AC. Behrens AG · 1981
- 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