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National Oilwell Varco Denmark I s patents


Recent patent applications related to National Oilwell Varco Denmark I s. National Oilwell Varco Denmark I s is listed as an Agent/Assignee. Note: National Oilwell Varco Denmark I s may have other listings under different names/spellings. We're not affiliated with National Oilwell Varco Denmark I s, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | National Oilwell Varco Denmark I s-related inventors


An assembly comprising an end-fitting and an unbonded flexible pipe

The present invention relates to an assembly including an end-fitting and an unbonded flexible pipe, which end-fitting is adapted for connecting the unbonded flexible pipe to a connector. The end-fitting has a through-going opening with a centerline and a front end and a rear end, and the end-fitting further includes... National Oilwell Varco Denmark I s

Unbonded flexible pipe

The present invention relates to an unbonded flexible pipe including a bore for transport of a fluid wherein the unbonded flexible pipe includes an internal pressure structure including a fluid-tight polymer sheath and a barrier layer on the inside of the fluid-tight polymer sheath and bonded thereto, wherein the internal... National Oilwell Varco Denmark I s

An offshore pipe system and a heating unbonded flexible pipes in an offshore pipe system

The present invention relates to an offshore pipe system comprising a first unbonded flexible pipe and a second unbonded flexible pipe for transportation of fluids such as oil or gas. Each of the unbonded flexible pipes comprises a sealing sheath and an electrically conductive armor layer, and, moreover, the system... National Oilwell Varco Denmark I s

Flexible pipe

The invention concerns a flexible pipe for offshore applications, such as for use as a riser in oil production. The flexible pipe has a longitudinal axis and contains a pressure resilient core pipe structure with an inner surface defining a bore, and at least a pair of cross wound and... National Oilwell Varco Denmark I s

A flexible metal tube

The present invention relates to flexible metal tube having a length and a longitudinal axis and suitable for forming a carcass of a flexible pipe for transport of hydrocarbons, the metallic tube comprises a plurality of consecutive windings of at least one elongate strip structure comprising a bearing structure and... National Oilwell Varco Denmark I s








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