B21C 35/023
Work treatment directly following extrusion
Official title: {Work treatment directly following extrusion, e.g. further deformation or surface treatment (B21C35/03 takes precedence; gas treatment B21C23/009)}
B21C35/023 (Work treatment directly following extrusion) appears on 102 US grants and 104 published applications in this corpus.
Search patents in B21C- Granted patents
- 102
- Published applications
- 104
- Assignees
- 83
- Inventors
- 262
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 3 |
| 2004 | 2 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 4 |
| 2015 | 1 | 4 |
| 2016 | 2 | 6 |
| 2017 | 3 | 11 |
| 2018 | 3 | 5 |
| 2019 | 10 | 5 |
| 2020 | 6 | 10 |
| 2021 | 5 | 8 |
| 2022 | 7 | 10 |
| 2023 | 5 | 11 |
| 2024 | 8 | 3 |
| 2025 | 11 | 5 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic actuator shell and preparation method7 Oct 2025US 12,434,287 B1Taiyuan University of Technology
- Extrusion and/or pultrusion device and method19 Aug 2025US 12,390,974 B2Reliefed AB
- Bracket manufacturing method19 Aug 2025US 12,392,124 B2Ash & Lacy Holdings Limited
- Extrusion and/or pultrusion device and method12 Aug 2025US 12,384,091 B2Reliefed AB
- Extrusion and/or pultrusion device and method12 Aug 2025US 12,384,092 B2Reliefed AB
- Method and mold for cold extrusion forming of wheel hub18 Jun 2026US 2026/0166612 A1Ningbo J.B.J Intelligence Technology Co., Ltd.
- Process and apparatus for producing a hollow cylinder for a medical application7 May 2026US 2026/0124051 A1BIOTRONIK SE & Co. KG
- Extruded heat pipe15 Jan 2026US 2026/0014608 A1Intel Corporation
- Tube expansion method of tubular material and tubular material parts manufactured using the same16 Oct 2025US 2025/0319510 A1Hyundai Motor Company
- Treads for climbing products and methods of manufacture2 Oct 2025US 2025/0305360 A1Werner Co.
Most cited
By later US patents
- Systems and methods for arc and node design and manufacture117US 10,173,255 B2Divergent Technologies, Inc. · 2019
- Extrusion molding process and apparatus82US 6,027,683 A2000
- Process of forming an irregular surface on the inside of a tube or pipe57US 3,944,641 A1976
- Structural beam and method of manufacture thereof45US 5,577,796 ANorsk Hydro A/S · 1996
- Method of manufacturing a vehicle body42US 5,098,007 AHitachi, Ltd. · 1992