B21B 19/14
Rolling tubes by means of additional rollers arranged inside the tubes
B21B19/14 (Rolling tubes by means of additional rollers arranged inside the tubes) appears on 4 US grants and 2 published applications in this corpus.
Search patents in B21B- Granted patents
- 4
- Published applications
- 2
- Assignees
- 4
- Inventors
- 21
- Latest grant
- 6 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells6 Jul 2021US 11,053,564 B2Jfe Steel Corporation
- Rotary crimping tool assembly29 Jan 2019US 10,193,291 B2Te Connectivity Corporation
- Method for automatically controlling spinning rolls28 Aug 1990US 4,951,490 AMAN Technologie GmbH
- Machine tool for the production of tubular components30 Aug 1988US 4,766,752 AMAN Technologie GmbH
- High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells21 Dec 2017US 2017/0362678 A1Jfe Steel Corporation
- Rotary crimping tool assembly14 Apr 2016US 2016/0104993 A1Tyco Electronics Corporation
Most cited
By later US patents
- Machine tool for the production of tubular components12US 4,766,752 AMAN Technologie GmbH · 1988
- Method for automatically controlling spinning rolls3US 4,951,490 AMAN Technologie GmbH · 1990
- High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells1US 11,053,564 B2Jfe Steel Corporation · 2021