US Patent Issued to TECHNIPFMC SUBSEA FRANCE on Oct. 7 for "Pipe-in-pipe pipelines" (Norwegian Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,825, issued on Oct. 7, was assigned to TECHNIPFMC SUBSEA FRANCE (France).

"Pipe-in-pipe pipelines" was invented by Andreas Tennoe (Oslo, Norway) and Valeriy Shepenkov (Oslo, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pipe-in-pipe (PIP) pipeline assembly for the transport of a fluid in a marine environment that includes: (a) a PIP pipeline length comprising at least metal inner and outer pipes and an annular space thereinbetween, the inner metal pipe having an internal diameter; (b) a PIP bulkhead, having a first end connected to an end of the PIP pipeline length and comprising at least a metal inner pipe with a first internal diameter, a...