B21B 13/147
Cluster mills
Official title: {Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls}
B21B13/147 (Cluster mills) appears on 115 US grants and 56 published applications in this corpus.
Search patents in B21B- Granted patents
- 115
- Published applications
- 56
- Assignees
- 55
- Inventors
- 228
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 9 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 2 |
| 2003 | 4 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 3 |
| 2007 | 4 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 4 | 5 |
| 2011 | 0 | 3 |
| 2012 | 4 | 6 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 4 | 3 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 4 |
| 2020 | 0 | 0 |
| 2021 | 0 | 3 |
| 2022 | 4 | 2 |
| 2023 | 1 | 1 |
| 2024 | 3 | 7 |
| 2025 | 1 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rack system, rolling plant including such a system and method implemented by such a system26 May 2026US 12,636,770 B2Fives Dms
- Multistage rolling mill and method of changing divided backing bearing assembled shafts in multistage rolling mill10 Feb 2026US 12,544,815 B2Sendzimir Japan, Ltd.
- Cold rolling method and method for producing cold-rolled steel sheet27 May 2025US 12,311,421 B2Jfe Steel Corporation
- Tool and method for changing the working roll in a rolling mill3 Dec 2024US 12,157,155 B2Fives Dms
- Multistage rolling mill9 Jul 2024US 12,030,098 B2Sendzimir Japan, Ltd.
- Spin-drying process and spin-drying installation25 Dec 2025US 2025/0387819 A1
- Roll rearrangement device and roll rearrangement method20 Mar 2025US 2025/0091108 A1Primetals Technologies Japan, Ltd.
- Dual-grasp tool2 Jan 2025US 2025/0001477 A1Fives Dms
- Rolling mill installation comprising a robotic system configured for extracting rolls from a rolling mill and a tool change magazine17 Oct 2024US 2024/0342777 A1Fives Dms
- Rolling mill with movable housing and sealed door22 Aug 2024US 2024/0278300 A1Fives Dms
Most cited
By later US patents
- Control device for controlling a controlled apparatus, and a control method therefor101US 5,430,642 AHitachi, Ltd. · 1995
- Method for reducing thickness of a titanium foil or thin strip element91US 5,226,989 ATexas Instruments Incorporated · 1993
- Hot strip rolling plant and method directly combined with continuous casting36US 5,634,257 AHitachi, Ltd. · 1997
- Control device for controlling a controlled apparatus, and a control method therefor27US 5,541,832 AHitachi, Ltd. · 1996
- Roll stand with noncylindrical rolls26US 4,519,233 ASMS Schloemann-Siemag Aktiengesellschaft · 1985