B21C 3/12
Die holders
Official title: Die holders; Rotating dies
B21C3/12 (Die holders) appears on 63 US grants and 39 published applications in this corpus.
Search patents in B21C- Granted patents
- 63
- Published applications
- 39
- Assignees
- 48
- Inventors
- 126
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 4 |
| 2017 | 2 | 3 |
| 2018 | 1 | 1 |
| 2019 | 5 | 4 |
| 2020 | 1 | 0 |
| 2021 | 3 | 2 |
| 2022 | 1 | 5 |
| 2023 | 1 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device for modifying a linear substrate2 Dec 2025US 12,485,448 B2Southwire Company
- Device for modifying a linear substrate1 Oct 2024US 12,103,035 B2Southwire Company
- Device for modifying a linear substrate24 Sep 2024US 12,097,527 B2Southwire Company
- Wire drawing monitoring system30 Jul 2024US 12,048,957 B2Paramount Die Co., Inc.
- Threading die for cold-drawing a metal wire26 Sep 2023US 11,766,707 B2Vassena Filiere S.R.L.
- Process and apparatus for producing a hollow cylinder for a medical application7 May 2026US 2026/0124051 A1BIOTRONIK SE & Co. KG
- Device for modifying a linear substrate14 Aug 2025US 2025/0256297 A1
- Wire drawing monitoring system26 Dec 2024US 2024/0424544 A1Paramount Die Co., Inc.
- Modular Forming Tool, Modular Forming Tool Set and Method for Producing Substantially Rotationally Symmetrical Parts3 Aug 2023US 2023/0241667 A1KAMAX Holding GmbH & Co. KG
- Threading die for cold-drawing a metal wire2 Mar 2023US 2023/0063440 A1Vassena Filiere S.R.L.
Most cited
By later US patents
- Method and apparatus for forming elongated articles having reduced diameter cross-sections44US 4,300,378 A1981
- Method of plastic forming of materials32US 5,737,959 A1998
- Tube reduction apparatus with integral means for sensing wall thickness during a high speed tube drawing operation27US 4,196,607 AUop LLC · 1980
- Twist drawn wire, process and apparatus for making same17US 3,961,514 ABrunswick Corporation · 1976
- Method and device for coating and shaping strand-shaped metallic material by drawing17US 6,430,980 B1Ecoform Umformtechnik GmbH · 2002