B21B 21/005
Pilgrim-step tube-rolling , i.e. pilger mills: with reciprocating stand
Official title: {with reciprocating stand, e.g. driving the stand}
B21B21/005 (Pilgrim-step tube-rolling , i.e. pilger mills: with reciprocating stand) appears on 64 US grants and 20 published applications in this corpus.
Search patents in B21B- Granted patents
- 64
- Published applications
- 20
- Assignees
- 25
- Inventors
- 94
- Latest grant
- 29 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 4 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cold-pilger rolling mill29 Jun 2021US 11,045,848 B2Sandvik Materials Technology Deutschland GmbH
- Cold pilger rolling mill and method for producing a pipe13 Apr 2021US 10,974,295 B2Sandvik Materials Technology Deutschland GmbH
- Process for producing a high-grade steel tube and high-grade steel tube24 Mar 2020US 10,597,743 B2Sandvik Materials Technology Deutschland GmbH
- Cold pilger rolling mill and method for forming a tube shell to a tube12 Mar 2019US 10,226,802 B2Sandvik Materials Technology Deutschland GmbH
- Feed drive for a cold pilgering mill18 Dec 2018US 10,155,257 B2Sandvik Materials Technology Deutschland GmbH
- Cold pilger rolling mill and method for producing a pipe23 May 2019US 2019/0151916 A1Sandvik Materials Technology Deutschland GmbH
- Cold-pilger rolling mill21 Mar 2019US 2019/0084020 A1Sandvik Materials Technology Deutschland GmbH
- Process for producing a high-grade steel tube and high-grade steel tube26 Jul 2018US 2018/0209005 A1Sandvik Materials Technology Deutschland GmbH
- Cold pilger rolling mill and method for forming a hollow shell into a tube6 Oct 2016US 2016/0288180 A1Sandvik Materials Technology Deutschland GmbH
- Cold pilger rolling mill and method for forming a tube shell to a tube14 Jul 2016US 2016/0199893 A1Sandvik Materials Technology Deutschland GmbH
Most cited
By later US patents
- Durable method for producing finned tubing25US 5,016,460 AInco Alloys International, Inc. · 1991
- Method and apparatus for producing zircaloy tubes and zircaloy tubes thus produced20US 4,233,834 ASandvik Special Metal Corporation · 1980
- Cold pilger mill16US 4,562,713 ASumitomo Metal Industries, Ltd. · 1986
- Crank drive system for cold pilger mills drive or the like15US 4,052,898 AWean United, Inc. · 1977
- Stand of cold tube-rolling mill12US 4,237,714 A1980