B21H 1/20
Rolled longitudinally
Official title: rolled longitudinally
B21H1/20 (Rolled longitudinally) appears on 26 US grants and 31 published applications in this corpus.
Search patents in B21H- Granted patents
- 26
- Published applications
- 31
- Assignees
- 23
- Inventors
- 49
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 1 | 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 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 6 |
| 2018 | 3 | 3 |
| 2019 | 1 | 1 |
| 2020 | 7 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 3 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Metallic tubular products with enhanced collapse resistance15 Jul 2025US 12,358,038 B2United States Steel Corporation
- Stretch rolling device and stretch rolling method11 Mar 2025US 12,246,370 B2SMS group GmbH
- Spinning device and spinning method7 Jan 2025US 12,186,793 B2Nihon Spindle Manufacturing Co., Ltd.
- Apparatus and method for profiling workpieces by cold forming31 Dec 2024US 12,179,254 B2Ernst Grob AG
- Compressive forming processes for enhancing collapse resistance in metallic tubular products23 Nov 2021US 11,179,763 B2United States Steel Corporation
- Device and method for the cold-forming profiling of workpieces8 Aug 2024US 2024/0261840 A1Ernst Grob AG
- Spinning device and spinning method8 Dec 2022US 2022/0388050 A1Nihon Spindle Manufacturing Co., Ltd.
- Stretch rolling device and stretch rolling method17 Nov 2022US 2022/0362827 A1SMS group GmbH
- Compressive forming processes for enhancing collapse resistance in metallic tubular products10 Feb 2022US 2022/0040749 A1United States Steel Corporation
- Apparatus and method for profiling workpieces by cold forming23 Dec 2021US 2021/0394250 A1Ernst Grob AG
Most cited
By later US patents
- Method for the calibrated cross-section reduction of a workpiece rotating during such method.10US 5,001,916 AErnst Grob AG · 1991
- Roll preshaping6US 7,237,417 B2Muller Weingarten AG · 2007
- Method and apparatus for finish rolling workpieces of substantially circular cross-section to a selected diameter4US 4,167,106 AWilhelm Hegenscheidt GmbH · 1979
- Method and device for the manufacture of multiple grooved wire4US 8,113,027 B2Illinois Tool Works Inc. · 2012
- Method for producing a profiled hollow shaft for a telescopic steering shaft and telescopic steering shaft2US 10,634,184 B2thyssenkrupp AG · 2020