B21C 37/0803
The tubes having a special shape
Official title: {the tubes having a special shape, e.g. polygonal tubes}
B21C37/0803 (The tubes having a special shape) appears on 109 US grants and 101 published applications in this corpus.
Search patents in B21C- Granted patents
- 109
- Published applications
- 101
- Assignees
- 114
- Inventors
- 264
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 3 |
| 2002 | 5 | 6 |
| 2003 | 5 | 9 |
| 2004 | 3 | 5 |
| 2005 | 0 | 6 |
| 2006 | 1 | 7 |
| 2007 | 2 | 6 |
| 2008 | 2 | 6 |
| 2009 | 1 | 1 |
| 2010 | 4 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 2 | 4 |
| 2015 | 6 | 5 |
| 2016 | 2 | 4 |
| 2017 | 3 | 1 |
| 2018 | 2 | 5 |
| 2019 | 2 | 3 |
| 2020 | 2 | 4 |
| 2021 | 5 | 5 |
| 2022 | 2 | 2 |
| 2023 | 2 | 3 |
| 2024 | 2 | 2 |
| 2025 | 2 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicle front rail11 Aug 2026US 12,703,427 B2Shape Corp.
- Beam assembly with multi-hollow formation30 Jun 2026US 12,668,202 B2Shape Corp.
- Boom assembly17 Feb 2026US 12,552,653 B2Oshkosh Corporation
- Expanded tube for a motor vehicle crash box and manufacturing method for it19 Aug 2025US 12,391,201 B2Outokumpu Oyj
- Method for joining edges and/or surfaces of a profile, joining roller arrangement and profiling installation13 May 2025US 12,296,368 B2Dreistern GmbH & Co. KG
- Boom assembly4 Jun 2026US 2026/0152375 A1
- 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 of manufacturing pipe6 Feb 2025US 2025/0041921 A1Futaba Industrial Co., Ltd.
- Method and system for forming tubular or truncated conical segments28 Mar 2024US 2024/0100582 A1Sif Holding N.V.
Most cited
By later US patents
- Heat transfer tubes and method for manufacturing61US 5,052,476 A501 Mitsubishi Shindoh Co., Ltd. · 1991
- Hydroformed tubular member and method of hydroforming tubular members48US 6,216,509 B1R. J. Tower Corporation · 2001
- Rigid elongated member for use in vehicles and producing method and apparatus therefor40US 5,756,167 AHashimoto Forming Industry Co., Ltd. · 1998
- Method of forming heat exchanger tube29US 6,615,488 B2Delphi Technologies, Inc. · 2003
- Optical-fiber submarine cable and manufacturing method thereof28US 4,257,675 AKokusai Denshin Denwa Kabushiki Kaisha · 1981