LandOfFree - US Patents - Listing for Pipes and tubular conduits

Pipes and tubular conduits – Distinct layers – With intermediate insulation layer

Phase change insulation for subsea flowlines

Pipes and tubular conduits – Miscellaneous

Pig safety device

Pipes and tubular conduits – With closures and plugs – Test plugs

Pig trap closure

Pipes and tubular conduits – Combined – With end structure

Pile member

Pipes and tubular conduits – Miscellaneous

Pin and truss cylinder construction

Pipes and tubular conduits – With pressure compensators – Variable capacity chambers

Ping-free water hammer arrester

Pipes and tubular conduits – Longitudinally seamed

Pipe

Pipes and tubular conduits – Combined – With indicating means

Pipe

Pipes and tubular conduits – Distinct layers – With intermediate insulation layer

Pipe and insulator therefor

Pipes and tubular conduits – Longitudinally seamed – Sectional

Pipe and method for producing the same

Pipes and tubular conduits – With closures and plugs – Inflation stem type

Pipe and sealing device

Pipes and tubular conduits – Combined – With end structure

Pipe bell end having a thickened portion and apparatus for formi

Pipes and tubular conduits – Structure

Pipe bend

Pipes and tubular conduits – Combined – With end structure

Pipe bend for a pipeline for transport of abrasive materials

Pipes and tubular conduits – Distinct layers – With intermediate insulation layer

Pipe blanket to fit a variety of pipe diameters

Pipes and tubular conduits – With closures and plugs – Inflatable

Pipe blocking technique

Pipes and tubular conduits – Longitudinally seamed – With diverse locking means

Pipe body and forming method of the same

Pipes and tubular conduits – Longitudinally seamed – With diverse locking means

Pipe body and forming method of the same

Pipes and tubular conduits – Longitudinally seamed – With diverse locking means

Pipe body and forming method of the same