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

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for steel pipes

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for steel pipes containing a sealing device locat

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for steel pipes having improved galling...

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for tubes

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for well casing and tubing

Pipe joints or couplings – Particular interface – Tapered

Threaded joint with high gas-leak-tightness for oil and gas well

Pipe joints or couplings – Particular interface – Interlocked or overlapped

Threaded members

Pipe joints or couplings – Particular interface – Tapered

Threaded pin and box construction for composite tubulars

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe connection

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe connection

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe connection with compressible seal ring

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe connection with cylindrical metal-to-metal,...

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe joint

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe joint

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe joint

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe joint having improved seal ring entrapment

Pipe joints or couplings – Particular interface – Tapered

Threaded pipe joint having improved seal ring entrapment

Pipe joints or couplings – Particular interface – Tapered

Threaded port for fluid flow connection

Pipe joints or couplings – Particular interface – Tapered

Threaded riser adaptor for attaching a structure to a riser