B21B 37/46
Roll speed or drive motor control
Official title: Roll speed or drive motor control (B21B37/52, B21B37/60 take precedence)
B21B37/46 (Roll speed or drive motor control) appears on 100 US grants and 78 published applications in this corpus.
Search patents in B21B- Granted patents
- 100
- Published applications
- 78
- Assignees
- 70
- Inventors
- 240
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 4 |
| 2010 | 1 | 4 |
| 2011 | 0 | 4 |
| 2012 | 1 | 1 |
| 2013 | 3 | 4 |
| 2014 | 3 | 0 |
| 2015 | 4 | 7 |
| 2016 | 1 | 3 |
| 2017 | 3 | 2 |
| 2018 | 4 | 5 |
| 2019 | 5 | 8 |
| 2020 | 8 | 4 |
| 2021 | 3 | 7 |
| 2022 | 4 | 5 |
| 2023 | 5 | 6 |
| 2024 | 5 | 1 |
| 2025 | 4 | 2 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and computer program product for calculating a pass schedule for a stable rolling process14 Apr 2026US 12,599,948 B2SMS group GmbH
- Production method for grain-oriented electrical steel sheet, and production line10 Mar 2026US 12,569,897 B2Jfe Steel Corporation
- Rolling taking frequency behavior into account4 Nov 2025US 12,459,019 B2Primetals Technologies Germany GmbH
- Rolling control device, rolling control method, and program21 Oct 2025US 12,447,517 B2Nippon Steel Corporation
- Production of a desired metal workpiece from a flat metal product22 Jul 2025US 12,365,974 B2ThyssenKrupp Steel Europe AG
- Reversible roughing mill for an aluminum or aluminum alloy product and related process13 Aug 2026US 2026/0233276 A1Danieli & C. Officine Meccaniche SpA
- Tension control apparatus18 Jun 2026US 2026/0166608 A1Toshiba Mitsubishi-Electric Industrial Systems Corporation
- Production method for grain-oriented electrical steel sheet18 Jun 2026US 2026/0166610 A1Jfe Steel Corporation
- Method of controlling hot finish rolling, method of controlling steel sheet, and device for controlling hot finish rolling12 Feb 2026US 2026/0042133 A1Jfe Steel Corporation
- Electrode sheet fabrication device4 Dec 2025US 2025/0367721 A1Jtekt Corporation
Most cited
By later US patents
- Apparatus for controlling re-distribution of load on continuous rolling mill21US 4,485,497 AMitsubishi Denki Kabushiki Kaisha · 1984
- Rolling process19US 4,365,496 AIshikawajima-Harima Jukogyo Kabushiki Kaisha · 1982
- Method and apparatus for controlling the speed of a motor17US 5,263,113 AKabushiki Kaisha Toshiba · 1993
- Control method, especially for load balancing of a plurality of electromotor drives16US 5,874,813 ASMS Schloemann-Siemag Aktiengesellschaft · 1999
- Control method and apparatus for rolling mill15US 4,566,299 AHitachi, Ltd. · 1986