B21C 37/286
Starting from sheet material
Official title: {starting from sheet material}
B21C37/286 (Starting from sheet material) appears on 21 US grants and 4 published applications in this corpus.
Search patents in B21C- Granted patents
- 21
- Published applications
- 4
- Assignees
- 16
- Inventors
- 27
- Latest grant
- 28 Nov 2006
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of bending pipe and apparatus therefor28 Nov 2006US 7,140,225 B2Yutaka Giken Co., Ltd.
- Method and apparatus for manufacturing a header pipe23 Apr 2002US 6,374,865 B1Calsonic Kansei Corporation
- Method and apparatus for manufacturing a header pipe4 Dec 2001US 6,324,761 B1Calsonic Kansei Corporation
- Apparatus for manufacturing a header pipe31 Jul 2001US 6,266,858 B1Calsoni Corporation
- Method for fabricating a seamless H.V.A.C. trunk line adaptor23 Jan 2001US 6,176,013 B1Green Street, Inc.
- Apparatus for making an adaptor which is used in heating and ventilation systems9 Apr 2015US 2015/0096347 A1
- One-piece half fitting for an insulated pipe18 Aug 2011US 2011/0198839 A1
- Elbow formation apparatus8 Jul 2010US 2010/0170318 A1Formtek, Inc.
- Method of bending pipe and apparatus therefor11 Aug 2005US 2005/0172692 A1Yutaka Giken Co., Ltd.
Most cited
By later US patents
- Method of making a curved pipe19US 5,014,424 AFuji Kucho Kogyo Kabushiki Kaisha · 1991
- Formation of radius elbows and O.G. sets12US 4,210,090 APotomac Applied Mechanics, Inc. · 1980
- Method for the fabrication of internally weld-cladded pipe elbows8US 4,165,245 ASulzer Brothers Limited · 1979
- Drawing die for making a pipe elbow6US 4,192,170 A1980
- Machine for forming curved conduits5US 4,287,742 A1981