LandOfFree - US Patents - Listing for Pipe joints or couplings

Pipe joints or couplings – With assembly means or feature – Guide and support

Threaded coupling

Pipe joints or couplings – Particular interface – Tapered

Threaded coupling with water exclusion seal system

Pipe joints or couplings – Particular interface – Interlocked or overlapped

Threaded coupling-tool joint

Pipe joints or couplings – Nonmetal to metal – Internal member

Threaded ferrule hose coupling

Pipe joints or couplings – End to side or plate – Countersunk packed

Threaded fittings

Pipe joints or couplings – Having plural independent paths – For concentric tubes or pipes

Threaded hose-in-hose coupler

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

Threaded joint for an oil well pipe

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for connecting two pipes with a metal to metal se

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for drill rod elements

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

Threaded joint for metal tubes with internal coating

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for oil well pipes

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for oil well pipes

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for oil-well pipe

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for pipes

Pipe joints or couplings – With lubrication

Threaded joint for pipes

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for pipes

Pipe joints or couplings – With lubrication

Threaded joint for steel pipe

Pipe joints or couplings – With lubrication

Threaded joint for steel pipes

Pipe joints or couplings – Particular interface – Tapered

Threaded joint for steel pipes