B21B 31/24
By screws
Official title: by screws
B21B31/24 (By screws) appears on 39 US grants and 18 published applications in this corpus.
Search patents in B21B- Granted patents
- 39
- Published applications
- 18
- Assignees
- 32
- Inventors
- 95
- Latest grant
- 19 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 4 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Asynchronous rolling mill with a super large diameter ratio and sheet rolling method19 Dec 2023US 11,845,117 B2Taiyuan University of Technology
- Flexible skew rolling mill with dual-rotatable-shafts28 Mar 2023US 11,612,919 B2University of Science and Technology Beijing
- Device for adjusting an object28 Mar 2023US 11,612,920 B2SMS group GmbH
- Electric lifting apparatus and roll press machine28 Mar 2023US 11,612,924 B2Sintokogio, Ltd.
- Wire rod rolling roller and gap adjustment device thereof1 Mar 2022US 11,260,438 B2Andong National University Industry-Academic Cooperation Foundation
- Asynchronous rolling mill with a super large diameter ratio and sheet rolling method12 Oct 2023US 2023/0321702 A1Taiyuan University of Technology
- Device for adjusting an object14 Oct 2021US 2021/0316346 A1SMS group GmbH
- Electric lifting apparatus and roll press machine25 Mar 2021US 2021/0086244 A1Sintokogio, Ltd.
- Flexible skew rolling mill with dual-rotatable-shafts24 Dec 2020US 2020/0398323 A1University of Science and Technology Beijing
- Wire rod rolling roller and gap adjustment device thereof22 Oct 2020US 2020/0331044 A1Andong National University Industry-Academic Cooperation Foundation
Most cited
By later US patents
- Roll-forming machine with adjustable compression21US 6,209,374 B1The Bradbury Company, Inc. · 2001
- Roll stand10US 5,590,557 ASMS Schloemann-Siemag Aktiengesellschaft · 1997
- Device for simultaneously driving the screws of two parallel screw-and-nut systems9US 4,819,507 ASociete Redex · 1989
- Mill housings for cluster mills9US 5,596,899 AT. Sendzimir, Inc. · 1997
- Apparatus for adjusting rolls of roll stand7US 4,470,284 ABGW Bergwerk-und Walzwerk Maschinenbau G.m.b.H. · 1984