B21C 37/0818
Manufacture of tubes by drawing of strip material through dies
Official title: {Manufacture of tubes by drawing of strip material through dies}
B21C37/0818 (Manufacture of tubes by drawing of strip material through dies) appears on 32 US grants and 38 published applications in this corpus.
Search patents in B21C- Granted patents
- 32
- Published applications
- 38
- Assignees
- 32
- Inventors
- 101
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 5 |
| 2020 | 1 | 11 |
| 2021 | 1 | 3 |
| 2022 | 7 | 0 |
| 2023 | 3 | 2 |
| 2024 | 1 | 4 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manufacture of roll formed tubes20 Jan 2026US 12,528,108 B2Hydro Extruded Solutions AS
- Electric resistance welded steel pipe and method for manufacturing the same20 Jan 2026US 12,529,435 B2Jfe Steel Corporation
- Welding monitoring apparatus and welding monitoring method4 Nov 2025US 12,459,023 B2Nippon Steel Corporation
- Electric-resistance-welded steel pipe for producing hollow stabilizer, hollow stabilizer, and method for producing same24 Dec 2024US 12,172,487 B2Jfe Steel Corporation
- Roll forming machine4 Apr 2023US 11,618,065 B2Nakata Manufacturing Co., Ltd.
- Method for a profiling system, closed profile according to the method, and housing with the closed profile25 Dec 2025US 2025/0391961 A1fischer Edelstahlrohre GmbH
- In-situ solar tracker manufacturing22 May 2025US 2025/0164154 A1
- Method for assembling a floating solar system, and corresponding system1 Aug 2024US 2024/0253748 A1Helioslite
- Welding monitoring apparatus and welding monitoring method14 Mar 2024US 2024/0082900 A1Nippon Steel Corporation
- Electric resistance welded steel pipe and method for manufacturing the same25 Jan 2024US 2024/0026999 A1Jfe Steel Corporation
Most cited
By later US patents
- Variable OD coiled tubing strings24US 6,527,056 B2Ctes, L.C. · 2003
- Inner ribbed tube and method11US 5,184,674 AHigh Performance Tube, Inc. · 1993
- Method and apparatus for forming and welding thin-wall tubing10US 4,995,549 A1991
- Apparatus for forming a split tube7US 4,403,491 AMannesmann Aktiengesellschaft · 1983
- Ceramic tubemill roll assembly7US 5,682,783 AMill Masters, Inc. · 1997