LandOfFree - US Patents - Listing for Pipes and tubular conduits

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

Inline bladder-type accumulator for downhole applications

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

Inline extracorporeal reservoir and pressure isolator

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

Inner diameter pipe plug

Pipes and tubular conduits – Plural duct – With spacer and encircling element

Inner tube assembly for dual conduit drill pipe

Pipes and tubular conduits – Plural duct – Longitudinally extending common wall

Inner-space-sectioned tubes and method for manufacturing the...

Pipes and tubular conduits – Thawing and freeze protection

Insert for freeze protecting water pipes

Pipes and tubular conduits – With flow regulators and/or baffles – Restrictors

Insert for movable diaphragm type flow control valve

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

Insert plug

Pipes and tubular conduits – Combined – With end structure

Insert with connecting outlet, particularly for flexible...

Pipes and tubular conduits – With closures and plugs – Laterally insertable

Insertable line stopper plug for pipelines

Insertion of liners into host tubulars by fluid injection

Installation assemblies for pipeline liners, pipeline liners...

Installation assemblies for pipeline liners, pipeline liners...

Installation of cured in place liners with air and steam and...

Installation of sealant materials for repair of underground...

Installing a pipe in an existing pipeline

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

Insulated conduit

Pipes and tubular conduits – Combined – With end structure

Insulated duct end system

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

Insulated exhaust pipe and manufacture thereof