B21B 5/00
Extending closed shapes of metal bands by rolling
Official title: Extending closed shapes of metal bands by rolling (manufacture of circular shapes, e.g. wheel rims, B21H1/06)
B21B5/00 (Extending closed shapes of metal bands by rolling) appears on 33 US grants and 27 published applications in this corpus.
Search patents in B21B- Granted patents
- 33
- Published applications
- 27
- Assignees
- 25
- Inventors
- 69
- Latest grant
- 14 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 0 |
| 2004 | 0 | 5 |
| 2005 | 3 | 0 |
| 2006 | 3 | 1 |
| 2007 | 3 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 0 | 4 |
| 2018 | 1 | 2 |
| 2019 | 4 | 0 |
| 2020 | 1 | 4 |
| 2021 | 4 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Annular cooling device for large-scale cylindrical shell14 Feb 2023US 11,577,289 B2Yanshan University
- Ring molded article manufacturing method and ring material28 Dec 2021US 11,208,910 B2Hitachi Metals, Ltd.
- Method for manufacturing ring-rolled product5 Oct 2021US 11,135,642 B2Hitachi Metals, Ltd.
- Method for manufacturing ring-rolled product3 Aug 2021US 11,077,481 B2Hitachi Metals, Ltd.
- CVT ring member and method for manufacturing the same16 Mar 2021US 10,948,046 B2Aichi Steel Corporation
- Annular Cooling Device for Large-Scale Cylindrical Shell15 Jul 2021US 2021/0213502 A1Yanshan University
- Method for manufacturing ring-rolled product1 Oct 2020US 2020/0306817 A1Hitachi Metals, Ltd.
- Method for manufacturing ring-rolled product1 Oct 2020US 2020/0306818 A1Hitachi Metals, Ltd.
- Ring molded article manufacturing method and ring material19 Mar 2020US 2020/0088057 A1Hitachi Metals, Ltd.
- Method of cooling main roll for ring rolling and method of manufacturing ring rolled body27 Feb 2020US 2020/0061686 A1
Most cited
By later US patents
- Composite driving belt14US 4,332,575 AVan Doorne's Transmissie B. V. · 1982
- Method of manufacturing laminated ring and apparatus for measuring circumferential length difference of ring in such method13US 6,318,140 B1Honda Giken Kogyo Kabushiki Kaisha · 2001
- Method and device for producing seamless ribbon and wire loops, and their use as cuttings tools in ribbon and wire saws11US 5,287,774 AWacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH · 1994
- Apparatus and method for work hardening an endless belt for use in a belt caster9US 5,640,868 ALarex A.G. · 1997
- Method of manufacturing laminated ring and heat treatment apparatus for use in such method7US 6,631,542 B1Honda Giken Kogyo Kabushiki Kaisha · 2003