Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for manufacturing medium-walled and thin-walled seamless pipes

Method and apparatus for manufacturing medium-walled and thin-walled seamless pipes

US Patent 5115656 · Granted May 26, 1992

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for producing hot-rolled seamless pipes having thickened ends2020
Rolling rod as an inner tool in the production of seamless metal hollow bodies a2019
Piercing mandrel having an improved service life for producing seamless tubes2018
Method for producing seamless hot-rolled pipes in continuous pipe rolling mills2016
Method and device for the optimized circulation of rods in the production of a s2016
Method for producing seamless tubes by means of a three-roll bar rolling mill2015
Method for producing seamless tubes by means of a three-roll bar rolling mill2015
Method of making a seamless hollow body from steel2012
Method of making a seamless hot-finished steel pipe, and device for carrying out2012
Method and device for producing a hollow body from solid round steel1999
Method of longitudinal rolling of seamless pipe1994
Making seamless pipes, over 200 mm in diameter1989