B21B 31/30
By wedges or their equivalent
Official title: by wedges or their equivalent
B21B31/30 (By wedges or their equivalent) appears on 34 US grants and 12 published applications in this corpus.
Search patents in B21B- Granted patents
- 34
- Published applications
- 12
- Assignees
- 27
- Inventors
- 81
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Electric lifting apparatus and roll press machine28 Mar 2023US 11,612,924 B2Sintokogio, Ltd.
- Roll stand, particularly push roll stand26 Sep 2017US 9,770,745 B2SMS Siemag Aktiengesellschaft
- Gap control device for pilger die assembly of cold pilger mills8 Aug 2017US 9,724,739 B2Kepco Nuclear Fuel Co., Ltd.
- Split housing cluster mill designed for temper and cold rolling14 Apr 2015US 9,003,854 B2I2S, LLC
- Cold rolling mill comprising a side-shift system21 May 2026US 2026/0138167 A1Fives Dms
- Method and device for providing inserts for support and/or work rolls of a roll stand18 Sep 2025US 2025/0289044 A1SMS group GmbH
- 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 mill23 Feb 2023US 2023/0060110 A1SMS group GmbH
- Electric lifting apparatus and roll press machine25 Mar 2021US 2021/0086244 A1Sintokogio, Ltd.
- Gap control device for pilger die assembly of cold pilger mills29 Oct 2015US 2015/0306647 A1Kepco Nuclear Fuel Co., Ltd.
Most cited
By later US patents
- Hydrostatic setting apparatus for support of loads13US 4,213,509 APfister GmbH · 1980
- Adjusting device for rolling mill rolls12US 4,736,609 ASMS Schloemann-Siegmag Aktiengesellschaft · 1988
- Hydraulic mill stand9US 4,038,857 ABlaw-Knox Foundry & Mill Machinery, Inc. · 1977
- Rail repair device9US 5,351,516 AOtis Elevator Company · 1994
- Apparatus for adjusting the upper edge of a work roll to the rolling line9US 5,479,809 AMannesmann Aktiengesellschaft · 1996