B21C 23/12
Extruding bent tubes or rods
B21C23/12 (Extruding bent tubes or rods) appears on 39 US grants and 43 published applications in this corpus.
Search patents in B21C- Granted patents
- 39
- Published applications
- 43
- Assignees
- 31
- Inventors
- 79
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 7 |
| 2005 | 4 | 0 |
| 2006 | 1 | 3 |
| 2007 | 3 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 5 |
| 2018 | 1 | 3 |
| 2019 | 2 | 0 |
| 2020 | 3 | 2 |
| 2021 | 3 | 3 |
| 2022 | 3 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 2 |
| 2025 | 4 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of manufacturing a door frame subassembly for an electronic display assembly17 Mar 2026US 12,576,579 B2Manufacturing Resources International, Inc.
- Methods of making a wide metal sheet12 Aug 2025US 12,383,945 B2GM Global Technology Operations LLC
- Apparatus and method for extruding curved profiles29 Jul 2025US 12,370,591 B2Imperial College Innovations Limited
- Method for manufacturing a motor vehicle structural component from an extruded multichamber hollow profile18 Mar 2025US 12,252,183 B2Benteler Automobiltechnik GmbH
- Unequal-channel angular self-bending extrusion die and method for designing and manufacturing the same and extruding method thereof14 Jan 2025US 12,194,519 B2Shandong University of Technology
- Extruded door frame subassembly, methods, and systems for producing the same25 Jun 2026US 2026/0175510 A1Manufacturing Resources International, Inc.
- Extruded door frame subassembly, methods, and systems for producing the same3 Apr 2025US 2025/0108552 A1Manufacturing Resources International, Inc.
- Method for manufacturing a motor vehicle structural component from an extruded multichamber hollow profile7 Nov 2024US 2024/0367728 A1Benteler Automobiltechnik GmbH
- Method and device for producing an extruded product25 Jan 2024US 2024/0024938 A1Technische UniversitäT Berlin
- Method for manufacturing a motor vehicle structural component from an extruded multichamber hollow profile1 Jun 2023US 2023/0166799 A1Benteler Automobiltechnik GmbH
Most cited
By later US patents
- Extrusion method and extrusion apparatus11US 5,305,626 AReynolds Aluminium Holland B.V. · 1994
- Extrusion arrangement9US 6,190,595 B1DaimlerChrysler AG · 2001
- Method of manufacturing control arm using variable curvature extruding process and double-hollow-typed control arm manufactured thereby5US 7,850,182 B2Dongyang Gangchul Co., Ltd. · 2010
- Method and device for producing curved extruded profiles4US 6,634,200 B2WKW Erbsloeh Automotive GmbH · 2003
- Discharge device of an extruding installation4US 6,952,942 B2SMS Eumuco GmbH · 2005