B21C 23/007
Hydrostatic extrusion
Official title: {Hydrostatic extrusion}
B21C23/007 (Hydrostatic extrusion) appears on 66 US grants and 25 published applications in this corpus.
Search patents in B21C- Granted patents
- 66
- Published applications
- 25
- Assignees
- 40
- Inventors
- 136
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 0 | 4 |
| 2015 | 1 | 3 |
| 2016 | 2 | 1 |
| 2017 | 3 | 3 |
| 2018 | 2 | 2 |
| 2019 | 2 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Tungsten-base alloy material and preparation method therefor15 Apr 2025US 12,276,008 B2Henan University of Science and Technology
- Processing die and preparation method for fastener18 Jul 2023US 11,701,704 B1Xuzhou University of Technology
- Process for forming metal wires1 Feb 2022US 11,235,366 B2Prince Mohammad Bin Fahd University
- Equal channel angular pressing of multi size copper wire15 Sep 2020US 10,773,286 B1Prince Mohammad Bin Fahd University
- Hydrostatic extrusion system and method for producing high strength seamless pipes17 Sep 2019US 10,413,951 B2
- Processing die and preparation method for fastener6 Jul 2023US 2023/0211405 A1Xuzhou University of Technology
- Tungsten-base alloy material and preparation method therefor13 Oct 2022US 2022/0325380 A1Henan University of Science and Technology
- Process for forming metal wires29 Jul 2021US 2021/0229152 A1Prince Mohammad Bin Fahd University
- Apparatus and method for creating metal matrix composite three-dimensional objects6 May 2021US 2021/0129227 A1Dyze Design
- Method and arrangement for manufacturing of tubes by continuous hydraulic expansion6 Dec 2018US 2018/0345349 A1Sandvik Intelectual Property AB
Most cited
By later US patents
- Method for metal working using high pressure fluid pulses35US 6,301,766 B1Tempress Technologies, Inc. · 2001
- Process for producing a heat pipe25US 4,087,893 ANippon Gakki Seizo Kabushiki Kaisha · 1978
- Methods and apparatus for increasing the efficiency of tubing extrusion21US 4,528,832 A1985
- Press for hydrostatic extrusion of tubes18US 3,994,149 AAllmanna Svenska Elektriska Aktiebolaget · 1976
- Continuous hydrostatic extrusion process and apparatus17US 4,163,377 ATrefimetaux · 1979