B21B 37/00
Control devices or methods specially adapted for metal-rolling mills or the work
Official title: Control devices or methods specially adapted for metal-rolling mills or the work produced thereby (methods or devices for measuring specially adapted for metal-rolling mills B21B38/00)
B21B37/00 (Control devices or methods specially adapted for metal-rolling mills or the work) appears on 1,340 US grants and 892 published applications in this corpus.
Search patents in B21B- Granted patents
- 1,340
- Published applications
- 892
- Assignees
- 447
- Inventors
- 2,682
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 20 | 0 |
| 1978 | 17 | 0 |
| 1979 | 15 | 0 |
| 1980 | 19 | 0 |
| 1981 | 23 | 0 |
| 1982 | 11 | 0 |
| 1983 | 16 | 0 |
| 1984 | 23 | 0 |
| 1985 | 29 | 0 |
| 1986 | 27 | 0 |
| 1987 | 30 | 0 |
| 1988 | 27 | 0 |
| 1989 | 12 | 0 |
| 1990 | 22 | 0 |
| 1991 | 21 | 0 |
| 1992 | 21 | 0 |
| 1993 | 21 | 0 |
| 1994 | 13 | 0 |
| 1995 | 14 | 0 |
| 1996 | 25 | 0 |
| 1997 | 31 | 0 |
| 1998 | 32 | 0 |
| 1999 | 41 | 0 |
| 2000 | 43 | 0 |
| 2001 | 52 | 10 |
| 2002 | 37 | 29 |
| 2003 | 27 | 29 |
| 2004 | 26 | 34 |
| 2005 | 19 | 18 |
| 2006 | 19 | 19 |
| 2007 | 18 | 23 |
| 2008 | 13 | 26 |
| 2009 | 9 | 29 |
| 2010 | 20 | 43 |
| 2011 | 18 | 31 |
| 2012 | 24 | 30 |
| 2013 | 35 | 30 |
| 2014 | 17 | 28 |
| 2015 | 27 | 46 |
| 2016 | 26 | 34 |
| 2017 | 36 | 32 |
| 2018 | 32 | 44 |
| 2019 | 31 | 37 |
| 2020 | 35 | 37 |
| 2021 | 32 | 59 |
| 2022 | 46 | 56 |
| 2023 | 49 | 51 |
| 2024 | 46 | 50 |
| 2025 | 35 | 27 |
| 2026 | 39 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B21B 37/28Control of flatness or profile during rolling of strip, sheets or plates399
- B21B 37/16Control of thickness, width, diameter or other transverse dimensions252
- B21B 37/74Temperature control237
- B21B 37/58Roll-force control233
- B21B 37/48Tension control179
- B21B 37/68Camber or steering control for strip, sheets or plates105
- B21B 37/46Roll speed or drive motor control100
- B21B 37/78Control of tube rolling56
All 14 subgroupsShow fewer
Recent patents
- Manufacturing method for tinplate6 Oct 2026US 12,752,324 B2Institute of Research of Iron and Steel, Jiangsu Province/Sha-Steel, Co. Ltd (Cn)
- Temperature control system and temperature control method for hot rolling line6 Oct 2026US 12,752,326 B2TMEIC Corporation
- Making an allowance for state-dependent density when solving a heat conduction equation22 Sep 2026US 12,742,219 B2Primetals Technologies Germany GmbH
- Cold rolling mill rolling condition calculation method, cold rolling mill rolling condition calculation device, cold rolling method, cold rolling mill, and steel sheet manufacturing method28 Jul 2026US 12,691,483 B2Jfe Steel Corporation
- Rolling with minimisation of a drop in the bending force upon entry21 Jul 2026US 12,686,043 B2Primetals Technologies Germany GmbH
- Method and apparatus for determining rolling force in flat roller rolling process of corrugated composite plate8 Oct 2026US 2026/0307125 A1Taiyuan University of Technology
- Method and equipment for cooling on a reversing hot rolling mill3 Sep 2026US 2026/0257262 A1Constellium Muscle Shoals LLC
- Method for cutting a metal strip to length and rolling mill with a shear for cutting a metal strip to length20 Aug 2026US 2026/0241426 A1SMS group GmbH
- Operating method of a continuous casting-rolling plant with edger20 Aug 2026US 2026/0241427 A1Primetals Technologies Germany GmbH
- Temperature control device and method for heating work rolls13 Aug 2026US 2026/0233275 A1Achenbach Buschhutten GmbH
Most cited
By later US patents
- Method and apparatus for eccentricity correction in a rolling mill483US 4,126,027 AWestinghouse Electric Corp. · 1978
- Time and work tracker for wireless devices177US 6,581,025 B2Discovision Associates · 2003
- Digital computer monitored and/or operated system or process which is structured for operation with an improved automatic programming process and system144US 4,215,406 AWestinghouse Electric Corp. · 1980
- Method for automatic operation of industrial plants102US 6,529,780 B1Siemens Aktiengesellschaft · 2003
- Control device for controlling a controlled apparatus, and a control method therefor101US 5,430,642 AHitachi, Ltd. · 1995