B21B 1/42
Metal-rolling methods or mills for making semi-finished products of solid or profiled
Official title: for step-by-step or planetary rolling (making tubes by pilgrim-step rolling B21B21/00)
B21B1/42 (Metal-rolling methods or mills for making semi-finished products of solid or profiled) appears on 21 US grants and 15 published applications in this corpus.
Search patents in B21B- Granted patents
- 21
- Published applications
- 15
- Assignees
- 20
- Inventors
- 61
- Latest grant
- 26 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Planetary reform roller and method of reforming a vessel cavity26 Oct 2021US 11,154,919 B2Titanium Metals Corporation
- Method for rolling metal wire or rod with assistance of combined static magnetic field2 Feb 2021US 10,906,076 B2Jiangsu University
- Hollow spring utilizing seamless steel pipe6 Nov 2018US 10,118,208 B2NHK Spring Co., Ltd.
- Titanium slab for hot rolling produced by electron-beam melting furnace, process for production thereof, and process for rolling titanium slab for hot rolling8 May 2018US 9,962,760 B2Nippon Steel & Sumitomo Metal Corporation
- Device and method for rolling of pipe blanks11 Apr 2017US 9,616,476 B2SMS group GmbH
- Preventing worn edges when rolling flat rolled products18 Feb 2021US 2021/0046529 A1Primetals Technologies Germany GmbH
- Planetary reform roller and method of reforming a vessel cavity17 Jan 2019US 2019/0015882 A1Titanium Metals Corporation
- Method for rolling metal wire or rod with assistance of combined static magnetic field19 Jul 2018US 2018/0200767 A1Jiangsu University
- Process for manufacturing seamless steel pipe, hollow spring utilizing seamless steel pipe5 Jan 2017US 2017/0001226 A1NHK Spring Co., Ltd.
- Hollow spring utilizing seamless steel pipe27 Nov 2014US 2014/0346721 A1NHK Spring Co., Ltd.
Most cited
By later US patents
- Continuous backpass rolling mill21US 4,793,169 AUnited Engineering, Inc. · 1988
- System and process for forming thin flat hot rolled steel strip21US 5,133,205 AChaparral Steel Company · 1992
- Method of and apparatus for continuously rolling steel slabs18US 4,294,394 AHitachi, Ltd. · 1981
- Ring manufacturing method and ring manufacturing apparatus11US 5,979,205 AAisin Seiki Kabushiki Kaisha · 1999
- Method for the calibrated cross-section reduction of a workpiece rotating during such method.10US 5,001,916 AErnst Grob AG · 1991