B21B 39/20
Revolving, turning-over, or like manipulation of work
Official title: Revolving, turning-over, or like manipulation of work, {e.g. revolving in trio stands}(guides in which work is subjected to permanent internal twisting B21B15/02)
B21B39/20 (Revolving, turning-over, or like manipulation of work) appears on 43 US grants and 19 published applications in this corpus.
Search patents in B21B- Granted patents
- 43
- Published applications
- 19
- Assignees
- 39
- Inventors
- 84
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 3 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Torsion guide, guide apparatus and corresponding method6 Jan 2026US 12,515,247 B2Danieli & C. Officine Meccaniche SpA
- Turning station for metal sheets or metal sheet stacks, and method for using the turning station22 Nov 2022US 11,505,418 B2KEURO Besitz GmbH & Co. EDV-Dienstleistungs KG
- Mandrel with compensating grip16 Aug 2022US 11,413,671 B2
- Steel plant for the production of long metal products and corresponding production method9 Jul 2019US 10,343,200 B2Danieli & C. Officine Meccaniche SpA
- System for overturning plate-shaped bodies8 Jan 2019US 10,173,847 B2SMS group GmbH
- Torsion guide, guide apparatus and corresponding method21 Mar 2024US 2024/0091836 A1Danieli & C. Officine Meccaniche SpA
- Turning station for metal sheets or metal sheet stacks, and method for using the turning station27 May 2021US 2021/0155433 A1KEURO Besitz GmbH & Co. EDV-Dienstleistungs KG
- Mandrel With Compensating Grip28 May 2020US 2020/0164418 A1
- System for overturning plate-shaped bodies16 Nov 2017US 2017/0326606 A1SMS group GmbH
- Steel plant for the production of long metal products and corresponding production method25 Aug 2016US 2016/0243602 A1Danieli & C. Officine Meccaniche SpA
Most cited
By later US patents
- Manipulator12US 4,381,169 AMuhr und Bender KG · 1983
- Method of rolling finished sections from a preliminary section in a reversing rolling stand arrangement7US 5,664,452 ASMS Schloemann-Siemag Aktiengesellschaft · 1997
- Inspection system for rolled products and method for assessing the surface of rolled products of a rolling installation7US 8,439,625 B2SMS Siemag Aktiengesellschaft · 2013
- Turn-over device for slab materials6US 4,095,700 AInstitutul Pentru Proiectari de Sectii si Uzine de Laminare -- Iprolam · 1978
- Method of handling bars6US 4,106,647 ASociete de Constructions Mecaniques de Creil (COMEC) · 1978