B21B 1/09
L-sections
B21B1/09 (L-sections) appears on 13 US grants and 7 published applications in this corpus.
Search patents in B21B- Granted patents
- 13
- Published applications
- 7
- Assignees
- 11
- Inventors
- 30
- Latest grant
- 25 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 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 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Bending method25 Jul 2023US 11,707,774 B2Aisin Keikinzoku Kabushiki Kaisha
- Roll bender with work piece support4 Jul 2023US 11,691,191 B2
- Welded hot-rolled high-strength steel structural members and methods12 May 2015US 9,027,309 B2Consolidated Metal Products, Inc.
- Welded hot-rolled high-strength steel structural members and methods14 Apr 2015US 9,004,342 B2Consolidated Metal Products, Inc.
- Method of rolling finished sections from preliminary sections in reversing roll stand arrangements25 Sep 2001US 6,293,133 B1SMS Schloemann-Siemag Aktiengesellschaft
- Roll bender with work piece support17 Feb 2022US 2022/0048085 A1
- Bending method23 Sep 2021US 2021/0291247 A1Aisin Keikinzoku Kabushiki Kaisha
- Two element building frame members, method and apparatus25 Oct 2018US 2018/0305918 A1
- Rolling machine, bending method, and workpiece material12 Apr 2018US 2018/0099323 A1Aisin Keikinzoku Kabushiki Kaisha
- Welded hot-rolled high-strength steel structural members and methods10 Jul 2014US 2014/0191018 A1Consolidated Metal Products, Inc.
Most cited
By later US patents
- Apparatus for controlling the position of roll in the direction of the roll axis10US 4,202,192 ANippon Steel Corporation · 1980
- Method of rolling angle structural shapes8US 4,279,139 AARBED Acieries Reunies de Burbach-Eich-Dudelange, Societe Anonyme · 1981
- Welded hot-rolled high-strength steel structural members and methods4US 9,004,342 B2Consolidated Metal Products, Inc. · 2015
- Method of rolling angular profiles having flanges of equal length2US 4,276,763 AARBED Acieries Reunies de Burbach-Eich-Dudelange, Societe Anonyme · 1981
- Rolling apparatus for producing angle from steel strip and method of rolling the angle using the same2US 5,941,114 ASumitomo Metal Industries, Ltd. · 1999