B21C 37/155
Making tubes with non-circular section
Official title: {Making tubes with non-circular section (B21C37/151, B21C37/154 take precedence)}
B21C37/155 (Making tubes with non-circular section) appears on 99 US grants and 109 published applications in this corpus.
Search patents in B21C- Granted patents
- 99
- Published applications
- 109
- Assignees
- 97
- Inventors
- 264
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 6 |
| 2003 | 4 | 9 |
| 2004 | 7 | 4 |
| 2005 | 4 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 5 |
| 2008 | 1 | 7 |
| 2009 | 0 | 6 |
| 2010 | 3 | 5 |
| 2011 | 1 | 4 |
| 2012 | 2 | 2 |
| 2013 | 3 | 5 |
| 2014 | 4 | 8 |
| 2015 | 4 | 4 |
| 2016 | 3 | 3 |
| 2017 | 4 | 1 |
| 2018 | 4 | 3 |
| 2019 | 1 | 2 |
| 2020 | 3 | 5 |
| 2021 | 5 | 9 |
| 2022 | 5 | 4 |
| 2023 | 3 | 3 |
| 2024 | 5 | 4 |
| 2025 | 2 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for forming a full engagement male lock in a ductline3 Mar 2026US 12,565,947 B2Mestek Machinery, Inc.
- Method for forming hollow profile non-circular extrusions using shear assisted processing and extrusion (ShAPE)21 Oct 2025US 12,447,518 B2Battelle Memorial Institute
- Air cooled condenser and related methods4 Mar 2025US 12,240,068 B2Holtec International
- Manufacturing method of member, manufacturing method of member for vehicle, and die and punch31 Dec 2024US 12,179,249 B2Nippon Steel Corporation
- Extruded material and method for producing the same10 Sep 2024US 12,083,570 B2Kobe Steel, Ltd.
- Method for Producing a Folded Flat Tube23 Jul 2026US 2026/0208279 A1Mahle International GmbH
- Method for Forming Hollow Profile Non-Circular Extrusions Using Shear Assisted Processing and Extrusion (ShAPE)22 Jan 2026US 2026/0021524 A1Battelle Memorial Institute
- Tube manufacturing equipment for square battery cans for electric vehicles11 Sep 2025US 2025/0281958 A1Alu Materials Co.,Ltd
- In-situ solar tracker manufacturing22 May 2025US 2025/0164154 A1
- Thermally broken structural tube1 May 2025US 2025/0135519 A1
Most cited
By later US patents
- Deterioration resistant chambers for inductively coupled plasma production40US 6,946,063 B1Advanced Energy Industries, Inc. · 2005
- System for fabricating muntin bars from sheet material36US 6,173,484 B1Glass Equipment Development, Inc. · 2001
- Hand railing and method of manufacture33US 5,190,267 AG. G. Schmitt & Sons, Inc. · 1993
- System for fabricating contour muntin bars from sheet material30US 6,438,819 B1Glass Equipment Development, Inc. · 2002
- Tube for heat exchanger24US 6,192,977 B1Valeo Thermique Moteur · 2001