LandOfFree - US Patents - Listing for Pipe joints or couplings

Pipe joints or couplings – With casing – lining or protector – Lined

Threaded connection for internally clad pipe

Pipe joints or couplings – Particular interface – Tapered

Threaded connection for oil country tubular goods and its...

Pipe joints or couplings – Particular interface – Tapered

Threaded connection for pipes and method of fabricating same

Pipe joints or couplings – Particular interface – Tapered

Threaded connection of two metal tubes with groove in the...

Pipe joints or couplings – Particular interface – Tapered

Threaded connection of two metal tubes with high tightening...

Pipe joints or couplings – Particular interface – Tapered

Threaded connection tubular goods

Pipe joints or couplings – With means blocking release of holding means – Lock nut or washer

Threaded connection using variable lead threads

Pipe joints or couplings – Particular interface – Tapered

Threaded connection with high compressive rating

Pipe joints or couplings – Particular interface – Tapered

Threaded connection with radiused surfaces

Pipe joints or couplings – Packed – With separable follower

Threaded connection with supporting ring

Utility Patent

Pipe joints or couplings – Particular interface – Tapered

Threaded connection with wedge segments

Pipe joints or couplings – With casing – lining or protector – Insulated

Threaded connections

Pipe joints or couplings – Distinct spaced serial

Threaded connections and methods for forming threaded...

Pipe joints or couplings – Particular interface – Tapered

Threaded connections utilizing composite materials

Pipe joints or couplings – With lubrication

Threaded connections with high and low friction coatings

Pipe joints or couplings – Particular interface – Tapered

Threaded connector

Pipe joints or couplings – With assembly means or feature

Threaded connector

Pipe joints or couplings – Particular interface – Tapered

Threaded connector

Pipe joints or couplings – Particular interface – Tapered

Threaded connector for pipe