ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,440, issued on April 14, was assigned to SAIPEM S.P.A. (Milan).

"System to convey a fluid" was invented by Amerigo D'Amico (Milan), Enrico La Sorda (Milan), Raymond Hallot (Milan) and Renzo Roldi (Milan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system to convey a fluid, in particular a fluid containing hydrocarbons, has a first pipeline, which is made of an electrically conductive material and has an internal diameter; a second pipeline, which is made of an electrically conductive material, has an external diameter smaller than the internal diameter, and is placed inside the first pipeline at a distance from the first pipeline so as to form ...