B21B 19/08
Enlarging tube diameter
B21B19/08 (Enlarging tube diameter) appears on 8 US grants and 6 published applications in this corpus.
Search patents in B21B- Granted patents
- 8
- Published applications
- 6
- Assignees
- 7
- Inventors
- 15
- Latest grant
- 12 Aug 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system12 Aug 2014US 8,800,334 B2Danieli & C. Officine Meccaniche SpA
- Tube rolling plant5 Mar 2013US 8,387,430 B2Sms Innse SPA
- Method for manufacturing seamless pipes or tubes13 Nov 2007US 7,293,443 B2Sumitomo Metal Industries, Ltd.
- Method and apparatus for manufacturing tubes by rolling26 Jul 2005US 6,920,773 B2Outokumpu Oyj
- Method and apparatus for manufacturing tubes17 May 2005US 6,892,559 B2Outokumpu Oyj
- Tube rolling plant28 Mar 2013US 2013/0074563 A1Sms Innse SPA
- Tube rolling plant7 Jun 2012US 2012/0137745 A1Sms Innse SPA
- Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system30 Jun 2011US 2011/0154876 A1Danieli & C. Officine Meccaniche SpA
- Method for manufacturing seamless pipes or tubes1 Feb 2007US 2007/0022796 A1Sumitomo Metal Industries, Ltd.
- Method and apparatus for manufacturing tubes by rolling26 Feb 2004US 2004/0035165 A1Outokumpu Oyj
Most cited
By later US patents
- Method of manufacturing bi-metallic tubing9US 5,259,547 AImperial Chemical Industries PLC · 1993
- Arrangement for inclined rolling of tube-shaped or bar shaped rolling products6US 6,792,781 B1Kocks Technik GmbH & Co. · 2004
- Method and apparatus for manufacturing tubes5US 6,892,559 B2Outokumpu Oyj · 2005
- Method and apparatus for manufacturing tubes by rolling4US 6,920,773 B2Outokumpu Oyj · 2005
- Making seamless steel pipes2US 4,809,423 A1989