B21C 23/08
Making wire, rods or tubes
B21C23/08 (Making wire, rods or tubes) appears on 376 US grants and 395 published applications in this corpus.
Search patents in B21C- Granted patents
- 376
- Published applications
- 395
- Assignees
- 272
- Inventors
- 955
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 4 |
| 2002 | 6 | 8 |
| 2003 | 5 | 14 |
| 2004 | 6 | 14 |
| 2005 | 9 | 8 |
| 2006 | 5 | 12 |
| 2007 | 8 | 13 |
| 2008 | 1 | 6 |
| 2009 | 4 | 8 |
| 2010 | 7 | 12 |
| 2011 | 7 | 15 |
| 2012 | 13 | 8 |
| 2013 | 7 | 12 |
| 2014 | 9 | 19 |
| 2015 | 12 | 19 |
| 2016 | 13 | 16 |
| 2017 | 13 | 24 |
| 2018 | 18 | 28 |
| 2019 | 22 | 19 |
| 2020 | 16 | 25 |
| 2021 | 17 | 21 |
| 2022 | 18 | 21 |
| 2023 | 12 | 23 |
| 2024 | 15 | 22 |
| 2025 | 29 | 16 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thin-walled composite pipe with high thermal conductivity, and preparation method and application thereof6 Oct 2026US 12,752,327 B2Shaanxi Zinc Industry Co., Ltd.
- Die assembly and methods for friction stir extrusion15 Sep 2026US 12,734,571 B2Ohio State Innovation Foundation
- Solid state manufacturing tools and methods using them9 Jun 2026US 12,649,178 B2MELD Manufacturing Corporation
- Devices and methods for performing shear-assisted extrusion and extrusion processes14 Apr 2026US 12,599,949 B2Battelle Memorial Institute
- Long-life aluminum alloy with a high corrosion resistance and helically grooved tube produced from the alloy24 Mar 2026US 12,584,197 B2Hydro Precision Tubing (Suzhou) Co., Ltd
- Extrusion molding method and extrusion molding apparatus of a differential thickness pipe having a solid part25 Jun 2026US 2026/0175277 A1Sango Co., Ltd.
- Extruded door frame subassembly, methods, and systems for producing the same25 Jun 2026US 2026/0175510 A1Manufacturing Resources International, Inc.
- 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
- Extrusion method and apparatus26 Mar 2026US 2026/0084196 A1
Most cited
By later US patents
- 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
- Hydroformed structural member with varied wall thickness50US 5,557,961 AGeneral Motors Corporation · 1996
- Methods for forming artificial diamond48US 5,462,772 A1995
- Extrusion tool for producing hard-metal or ceramic drill blank46US 4,779,440 AFried. Krupp Gesellschaft mit beschraenkter Haftung · 1988