B21B 2013/025
Quarto, four-high stands
Official title: {Quarto, four-high stands}
B21B2013/025 (Quarto, four-high stands) appears on 89 US grants and 65 published applications in this corpus.
Search patents in B21B- Granted patents
- 89
- Published applications
- 65
- Assignees
- 54
- Inventors
- 203
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 6 |
| 2004 | 2 | 4 |
| 2005 | 2 | 5 |
| 2006 | 2 | 5 |
| 2007 | 6 | 4 |
| 2008 | 1 | 3 |
| 2009 | 3 | 5 |
| 2010 | 3 | 3 |
| 2011 | 3 | 4 |
| 2012 | 1 | 2 |
| 2013 | 5 | 3 |
| 2014 | 2 | 1 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 3 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 3 |
| 2022 | 1 | 1 |
| 2023 | 4 | 3 |
| 2024 | 1 | 3 |
| 2025 | 4 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rolling mill facility19 May 2026US 12,629,737 B2Primetals Technologies Japan, Ltd.
- Stabilization of the rolled product during opening and/or closing of a roll stand9 Dec 2025US 12,491,551 B2SMS group GmbH
- Hot rolling mills and hot rolling methods7 Oct 2025US 12,434,283 B2Primetals Technologies Japan, Ltd.
- Hot-rolling stand for a hot-rolling mill and for producing a flat metal product, hot-rolling mill and method for operating a hot-rolling mill1 Jul 2025US 12,343,776 B2SMS group GmbH
- Six-high rolling mill stand and finishing mill train for hot rolling an intermediate strip into a thin strip25 Feb 2025US 12,233,443 B2Primetals Technologies Austria GmbH
- Cold rolling mill comprising a side-shift system21 May 2026US 2026/0138167 A1Fives Dms
- Roll structure of a four-high rolling mill for preparing ultra-thin metal foils with surface microtexture and a rolling method thereof25 Dec 2025US 2025/0387818 A1Taiyuan University of Technology
- Six-high rolling mill stand and finishing mill train for hot rolling an intermediate strip into a thin strip31 Oct 2024US 2024/0359224 A1Primetals Technologies Austria GmbH
- Rolling with minimisation of a drop in the bending force upon entry7 Mar 2024US 2024/0075508 A1Primetals Technologies Germany GmbH
- Rolling mill facility11 Jan 2024US 2024/0009723 A1Primetals Technologies Japan, Ltd.
Most cited
By later US patents
- Lamination process and apparatus for alkali metals or alloys thereof25US 7,513,136 B2Bathium Canada Inc. · 2009
- Six-high rolling mills24US 4,531,394 AT. Sendzimir, Inc. · 1985
- Hot steel plate rolling mill system and rolling method21US 5,636,543 AHitachi, Ltd. · 1997
- Means and a method of improving the quality of cold rolled stainless steel strip18US 5,197,179 AT. Sendzimir, Inc. · 1993
- Roll supporting device for a rolling mill arrangement18US 6,158,263 ANtn Corporation · 2000