B21C 31/00
Control devices for metal extruding
Official title: Control devices for metal extruding, e.g. for regulating the pressing speed or temperature of metal (B21C25/08 takes precedence); Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
B21C31/00 (Control devices for metal extruding) appears on 76 US grants and 77 published applications in this corpus.
Search patents in B21C- Granted patents
- 76
- Published applications
- 77
- Assignees
- 52
- Inventors
- 163
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 3 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 4 |
| 2015 | 4 | 10 |
| 2016 | 4 | 3 |
| 2017 | 4 | 1 |
| 2018 | 4 | 3 |
| 2019 | 4 | 1 |
| 2020 | 2 | 7 |
| 2021 | 0 | 1 |
| 2022 | 7 | 8 |
| 2023 | 3 | 7 |
| 2024 | 3 | 5 |
| 2025 | 5 | 4 |
| 2026 | 2 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Method and apparatus for manufacturing metal pipe3 Feb 2026US 12,539,533 B2Nakata Manufacturing Co., Ltd.
- Forming method and forming machine for producing a helical toothing of a cylindrical workpiece by extrusion23 Sep 2025US 12,420,331 B2FELSS Systems GmbH
- Method for monitoring and for changing the position of at least one running bar of a metal press, and metal press12 Aug 2025US 12,383,947 B2SMS group GmbH
- Processes and/or machines for producing continuous plastic deformation, and/or compositions and/or manufactures produced thereby8 Jul 2025US 12,350,740 B2
- Shear Assisted Extrusion Press Apparatus and Components16 Apr 2026US 2026/0102804 A1Atomic 13, LLC
- Shear Assisted Extrusion Press Apparatus and Components16 Apr 2026US 2026/0102805 A1Atomic 13, LLC
- Shear Assisted Extrusion Press Apparatus and Components16 Apr 2026US 2026/0102806 A1Atomic 13, LLC
- Shear Assisted Extrusion Press Apparatus and Components16 Apr 2026US 2026/0102807 A1Atomic 13, LLC
- Shear Assisted Extrusion Press Apparatus and Components16 Apr 2026US 2026/0102808 A1Atomic 13, LLC
Most cited
By later US patents
- System and method for building three-dimensional objects with metal-based alloys56US 9,027,378 B2Stratasys, Inc. · 2015
- System and method for building three-dimensional objects with metal-based alloys53US 7,942,987 B2Stratasys, Inc. · 2011
- Apparatus and method for controlling the internal structure of matter48US 4,288,398 A1981
- System for manufacturing an irrigation pipe and a device and method for detecting holes in the wall of an irrigation pipe29US 9,022,764 B2Maillefer S. A. · 2015
- Molding/extrusion apparatus with temperature and flow control15US 5,360,329 A1994