B21C 37/101
Making of the seams
Official title: {Making of the seams}
B21C37/101 (Making of the seams) appears on 27 US grants and 28 published applications in this corpus.
Search patents in B21C- Granted patents
- 27
- Published applications
- 28
- Assignees
- 23
- Inventors
- 41
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 3 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 5 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 2 | 3 |
| 2013 | 2 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pocket flange forming device for duct3 Mar 2026US 12,564,872 B2Jinwoong Technology Co., Ltd.
- Seam forming apparatus for elbow duct4 Feb 2025US 12,214,396 B2
- Cylindrical body and apparatus24 Dec 2024US 12,172,845 B2Canon Kabushiki Kaisha
- Assembly for manufacturing a metal part and use of such an assembly9 Nov 2021US 11,167,334 B2Faurecia Systemes D'Echappement
- Automatic precision clinching system for manufacturing sheet metal tubes7 Sep 2021US 11,110,508 B2
- Thin-walled pipe, metallic flat material and method for producing a thin-walled pipe23 Jan 2025US 2025/0027583 A1Scherdel Innotec Forschungs-Und Entwicklungs-GmbH
- Pocket flange forming device for duct28 Dec 2023US 2023/0415214 A1Jinwoong Technology Co., Ltd.
- Seam forming apparatus for elbow duct10 Aug 2023US 2023/0249238 A1
- Cylindrical body and apparatus30 Mar 2023US 2023/0097168 A1Canon Kabushiki Kaisha
- Apparatus and method for forming a sealing portion on duct members25 Nov 2021US 2021/0362207 A1Cleveland Tool & Machine, Inc.
Most cited
By later US patents
- Tubular structures and knurling systems and methods of manufacture and use thereof118US 9,933,092 B2Deflecto, LLC · 2018
- Method and apparatus for forming box-shaped sheet metal ducts36US 5,105,640 AIowa Precision Industries, Inc. · 1992
- Fold structure for connecting metal sheet sections12US 4,171,599 A1979
- Assembly of straight duct and transitions6US 4,111,143 APotomac Applied Mechanics, Inc. · 1978
- Assembly of straight duct and transitions5US 4,424,618 APotomac Applied Mechanics, Inc. · 1984