B21B 17/12
In a discontinuous process
Official title: in a discontinuous process {, e.g. plug-rolling mills}
B21B17/12 (In a discontinuous process) appears on 8 US grants and 2 published applications in this corpus.
Search patents in B21B- Granted patents
- 8
- Published applications
- 2
- Assignees
- 5
- Inventors
- 16
- Latest grant
- 11 Jun 1996
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Plug mill bottom roll adjustment11 Jun 1996US 5,524,470 AItalimplanti of America, Inc.
- Method of producing seamless pipes utilizing a plug rolling procedure9 May 1995US 5,412,974 AMannesmann Aktiengesellschaft
- Device for the delivery and removal of the mandrel rods in skew and longitudinal rolling mills3 Jun 1986US 4,592,222 AMannesmann Aktiengesellschaft
- Return pass practice for the high mill of a seamless-pipe mill27 Sep 1983US 4,406,143 AUnited States Steel Corporation
- Simultaneous plug-mill rolling for increased production and enhanced tube quality18 Dec 1979US 4,178,789 AUnited States Steel Corporation
Most cited
By later US patents
- Continuous flow plug mill system9US 4,037,449 AAetna-Standard Engineering Company · 1977
- Return pass practice for the high mill of a seamless-pipe mill3US 4,406,143 AUnited States Steel Corporation · 1983
- Rolling mill for forming seamless tubes, and seamless tube-making apparatus comprising such a mill2US 4,091,650 AVallourec (Usines a Tubes de Lorraine-Escaut et Vallourec Reunies) · 1978
- Device for the delivery and removal of the mandrel rods in skew and longitudinal rolling mills2US 4,592,222 AMannesmann Aktiengesellschaft · 1986
- Shellpusher for plug mill or the like1US 4,037,453 AAetna-Standard Engineering Company · 1977