B21C 23/21
Presses specially adapted for extruding metal
B21C23/21 (Presses specially adapted for extruding metal) appears on 204 US grants and 168 published applications in this corpus.
Search patents in B21C- Granted patents
- 204
- Published applications
- 168
- Assignees
- 103
- Inventors
- 338
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 3 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 3 |
| 2006 | 1 | 3 |
| 2007 | 4 | 0 |
| 2008 | 3 | 4 |
| 2009 | 0 | 1 |
| 2010 | 2 | 5 |
| 2011 | 1 | 3 |
| 2012 | 2 | 3 |
| 2013 | 3 | 4 |
| 2014 | 3 | 14 |
| 2015 | 5 | 16 |
| 2016 | 7 | 7 |
| 2017 | 14 | 10 |
| 2018 | 4 | 12 |
| 2019 | 12 | 3 |
| 2020 | 7 | 19 |
| 2021 | 7 | 12 |
| 2022 | 15 | 9 |
| 2023 | 8 | 11 |
| 2024 | 6 | 9 |
| 2025 | 10 | 3 |
| 2026 | 4 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Autogenic canister for metal recycling by indirect hot extrusion30 Jun 2026US 12,667,885 B2LeTourneau University
- Front loading extrusion press for producing metal extrudates by extruding a billet26 May 2026US 12,636,692 B2Danieli & C. Officine Meccaniche SpA
- Alu-box comprising a profile and the profile as such21 Apr 2026US 12,606,345 B2Wiberg & Wiberg Aps
- Devices and methods for performing shear-assisted extrusion and extrusion processes17 Feb 2026US 12,551,946 B2Battelle Memorial Institute
- Shear assisted extrusion apparatus, tools, and methods23 Dec 2025US 12,502,701 B2Battelle Memorial Institute
- Extrusion molding method and extrusion molding apparatus of a differential thickness pipe having a solid part25 Jun 2026US 2026/0175277 A1Sango Co., Ltd.
- Extrusion press for producing metal products21 May 2026US 2026/0138169 A1Danieli & C. Officine Meccaniche SpA
- Shear Assisted Extrusion Apparatus, Tools, and Methods21 May 2026US 2026/0138170 A1Battelle Memorial Institute
- Process and apparatus for producing a hollow cylinder for a medical application7 May 2026US 2026/0124051 A1BIOTRONIK SE & Co. KG
- Shear Assisted Extrusion Press Apparatus and Components16 Apr 2026US 2026/0102804 A1Atomic 13, LLC
Most cited
By later US patents
- Method of and apparatus for processing tungsten heavy alloys for kinetic energy penetrators61US 5,600,989 A1997
- Apparatus and method for deformation processing of metals, ceramics, plastics and other materials36US 5,400,633 AThe Texas A&M University System · 1995
- System and process for formation of extrusion products25US 10,189,063 B2Battelle Memorial Institute · 2019
- Functionally graded coatings and claddings20US 10,695,811 B2Battelle Memorial Institute · 2020
- Continuous extrusion apparatus20US 5,157,955 ABWE Limited · 1992