B21B 17/08
Tube-rolling by rollers of which the axes are arranged essentially perpendicular to
Official title: with mandrel having one or more protrusions {, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills}
B21B17/08 (Tube-rolling by rollers of which the axes are arranged essentially perpendicular to) appears on 29 US grants and 16 published applications in this corpus.
Search patents in B21B- Granted patents
- 29
- Published applications
- 16
- Assignees
- 21
- Inventors
- 58
- Latest grant
- 21 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 7 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Apparatus line for manufacturing seamless steel pipe and tube and method of manufacturing duplex seamless stainless steel pipe21 Nov 2023US 11,821,051 B2Jfe Steel Corporation
- Equipment line for manufacturing seamless steel tube or pipe and method of manufacturing high-strength stainless steel seamless tube or pipe for oil wells using the equipment line25 Feb 2020US 10,570,471 B2Jfe Steel Corporation
- Apparatus line for manufacturing seamless steel pipe and tube and method of manufacturing duplex seamless stainless steel pipe28 Jan 2020US 10,544,476 B2Jfe Steel Corporation
- Method of manufacturing piston of pump for brake system and pump for brake system including the piston17 Dec 2019US 10,507,501 B2Mando Corporation
- Device and method to shape worked pieces13 Nov 2018US 10,124,388 B2Repkon Machine and Tool Industry and Trade Inc.
- Modular stand base for spaced stands of a rolling mil20 Nov 2025US 2025/0353052 A1
- Modular stand base for stands of a rolling mill20 Nov 2025US 2025/0353057 A1
- Threefold rotationally symmetrical stand having an adjustment connector20 Nov 2025US 2025/0353058 A1
- Threefold rotationally symmetrical stand having rollers mounted in eccentric bushings20 Nov 2025US 2025/0353059 A1
- Stand change carriage comprising a lifting mechanism20 Nov 2025US 2025/0353060 A1
Most cited
By later US patents
- Method for manufacturing seamless pipe13US 5,778,714 ANKK Corporation · 1998
- Method of producing seamless steel tube11US 4,006,618 ANippon Steel Corporation · 1977
- Continuous flow plug mill system9US 4,037,449 AAetna-Standard Engineering Company · 1977
- Method and apparatus for internally enhancing heat exchanger tubing7US 4,995,252 ACarrier Corporation · 1991
- Press roll piercing method5US 4,190,887 ANippon Steel Corporation · 1980