B21C 3/00
Profiling tools for metal drawing
Official title: Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
B21C3/00 (Profiling tools for metal drawing) appears on 300 US grants and 220 published applications in this corpus.
Search patents in B21C- Granted patents
- 300
- Published applications
- 220
- Assignees
- 197
- Inventors
- 668
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 10 | 0 |
| 1982 | 6 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 7 |
| 2003 | 7 | 5 |
| 2004 | 6 | 12 |
| 2005 | 5 | 7 |
| 2006 | 2 | 9 |
| 2007 | 3 | 6 |
| 2008 | 3 | 8 |
| 2009 | 5 | 9 |
| 2010 | 5 | 15 |
| 2011 | 6 | 5 |
| 2012 | 6 | 5 |
| 2013 | 4 | 9 |
| 2014 | 4 | 5 |
| 2015 | 7 | 13 |
| 2016 | 10 | 10 |
| 2017 | 7 | 14 |
| 2018 | 6 | 13 |
| 2019 | 8 | 13 |
| 2020 | 14 | 10 |
| 2021 | 7 | 8 |
| 2022 | 5 | 11 |
| 2023 | 9 | 7 |
| 2024 | 6 | 6 |
| 2025 | 8 | 6 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Devices and method for shaping a tubular hollow element29 Sep 2026US 12,746,587 B2FELSS Systems GmbH
- NbC-based cemented carbide11 Aug 2026US 12,703,899 B2Hyperion Materials & Technologies, Inc.
- Apparatus and method for reducing the cross section of a tubular hollow body by shaping the hollow body16 Jun 2026US 12,654,212 B2FELSS Systems GmbH
- Irregularly-shaped die16 Jun 2026US 12,654,213 B2A. L. M. T. Corp.
- Device for modifying a linear substrate2 Dec 2025US 12,485,448 B2Southwire Company
- Wire drawing die24 Sep 2026US 2026/0284726 A1A. L. M. T. Corp.
- Wire drawing die13 Aug 2026US 2026/0233277 A1A. L. M. T. Corp.
- Method and mechanical arrangement for producing a tubular hollow body from a tubular hollow body blank, in particular for producing a hollow shaft from a shaft blank13 Aug 2026US 2026/0233293 A1FELSS Systems GmbH
- Sheet metal drawing machine25 Jun 2026US 2026/0175276 A1Acb
- Process and apparatus for producing a hollow cylinder for a medical application7 May 2026US 2026/0124051 A1BIOTRONIK SE & Co. KG
Most cited
By later US patents
- Rotary drill bit including polycrystalline diamond cutting elements320US 7,866,418 B2US Synthetic Corporation · 2011
- Method of making tool inserts and drill bits161US 4,481,016 A1984
- Apparatus for manufacturing profile pipes used in well construction123US 5,119,661 A1992
- Optically improved diamond wire die66US 5,465,603 AGeneral Electric Company · 1995
- Composite diamond compact for a wire drawing die and a process for the production of the same59US 4,374,900 ASumitomo Electric Industry, Ltd. · 1983