Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of manufacturing a pipe having sections with different cross-sectional configurations

Method of manufacturing a pipe having sections with different cross-sectional configurations

US Patent 5836189 · Granted Nov 17, 1998

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Vehicle door of armor steel2023
Armor steel structure2013
Control arm structure for wheel suspensions of motor vehicles, and method of mak2009
Adaptive crash structure for a vehicle body or chassis of a motor vehicle2008
Method and apparatus for making tubes2008
Apparatus for heat treatment of structural body parts in the automobile industry2007
Apparatus for heat treatment of structural body parts in the automobile industry2007
Apparatus and process for hydraulic high-pressure forming of a sheet2006
Safety arrangement for motor vehicles2005
Method of making a hardened sheet metal article2005
Method of manufacturing a bending-resistant, torsionally yielding tubular profil2004
Method of making a steel crossbeam which crossbeam forms a component of a bumper2004