LandOfFree - US Patents - Listing for Pipe joints or couplings,Particular interface

Pipe joints or couplings – Particular interface – Tapered

Threaded tool joint with dual mating shoulders

Pipe joints or couplings – Particular interface – Tapered

Threaded tube joint

Pipe joints or couplings – Particular interface – Tapered

Threaded tubing seals

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular connection

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular connection

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular connection having interlocking tubular end...

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular connection which is resistant to bending...

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular connection with outer threaded ring

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular connection with progressive axial thread...

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular coupling

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular element for fatigue resistant threaded...

Pipe joints or couplings – Particular interface – Tapered

Threaded tubular joint proof to external pressure

Pipe joints or couplings – Particular interface – Tapered

Threads with perturbations

Pipe joints or couplings – Particular interface – Tapered

Threads with perturbations

Pipe joints or couplings – Particular interface – Tapered

Threads with perturbations

Pipe joints or couplings – Particular interface

Thrust ring for pipe joints

Pipe joints or couplings – Particular interface – Tapered

Tire valve core

Pipe joints or couplings – Particular interface – Tapered

Tool joint

Pipe joints or couplings – Particular interface – Tapered

Tool joint and drill pipe made therefrom