B21C 1/16
Metal drawing by machines or apparatus in which the drawing action is
Official title: Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
B21C1/16 (Metal drawing by machines or apparatus in which the drawing action is) appears on 296 US grants and 272 published applications in this corpus.
Search patents in B21C- Granted patents
- 296
- Published applications
- 272
- Assignees
- 207
- Inventors
- 687
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 8 |
| 2003 | 6 | 8 |
| 2004 | 9 | 10 |
| 2005 | 4 | 15 |
| 2006 | 5 | 9 |
| 2007 | 10 | 10 |
| 2008 | 3 | 12 |
| 2009 | 5 | 9 |
| 2010 | 7 | 9 |
| 2011 | 6 | 7 |
| 2012 | 7 | 5 |
| 2013 | 5 | 9 |
| 2014 | 8 | 8 |
| 2015 | 3 | 13 |
| 2016 | 7 | 15 |
| 2017 | 12 | 22 |
| 2018 | 12 | 17 |
| 2019 | 11 | 20 |
| 2020 | 17 | 13 |
| 2021 | 15 | 16 |
| 2022 | 9 | 11 |
| 2023 | 17 | 8 |
| 2024 | 8 | 6 |
| 2025 | 7 | 3 |
| 2026 | 4 | 7 |
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
- 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
- Process for producing an ornamental chain10 Feb 2026US 12,543,827 B2Minervahub S.P.A.
- Methods for forming electronic device housings13 Jan 2026US 12,526,944 B2Meta Platforms Technologies, LLC
- Aerosol generation device heater element manufacture25 Nov 2025US 12,478,104 B2
- 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
- Austenite-based stainless steel pipe and method of manufacturing the same9 Jul 2026US 2026/0193761 A1Nippon Steel Corporation
- Process and apparatus for producing a hollow cylinder for a medical application7 May 2026US 2026/0124051 A1BIOTRONIK SE & Co. KG
- Methods and processes for manufacturing endless rod23 Apr 2026US 2026/0110048 A1
- Rotary draw machine5 Mar 2026US 2026/0061469 A1Arma Automotive Inc.
Most cited
By later US patents
- Apparatus for manufacturing profile pipes used in well construction123US 5,119,661 A1992
- Method for manufacturing small diameter medical devices47US 6,647,755 B2OmniSonics Medical Technologies, Inc. · 2003
- Solar collector utilizing copper lined aluminum tubing and method of making such tubing43US 4,023,557 AUop LLC · 1977
- Strengthening member for automobile41US 6,752,451 B2Nippon Steel Corporation · 2004
- Method for producing tubing of varying wall thickness33US 4,616,500 AGeorge A. Mitchell Company · 1986