Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for welding conduits

Method and apparatus for welding conduits

US Patent 4642154 · Granted Feb 10, 1987

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Fishing rod holder2006
Pipe-drilling fitting2001
Method of removing nitrogen oxides from a gas flow2000
Device for holding doors and windows1996
Coupling for tubular plastic pipes with liner of socket and liner of pipes being1994
Fitting of weldable thermoplastic material1989
Tool assembly for circumferential cutting of cylindrical pipe members1989
Apparatus for storing printed products arriving in an imbricated formation1987
Prefabricated assembly for high tensile strength pipe connections1987
Process for heat-sealing thermoplastic conduits1987
Process for heat-sealing thermoplastic conduits1987
Molded tapping member formed of a weldable plastics material1987