ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,505, issued on May 5, was assigned to XGS Energy Inc. (Palo Alto, Calif.).
"Insulated welded joint for pipe-in-pipe systems" was invented by Piotr D. Moncarz (Palo Alto, Calif.), Mark McGilvray Jr. (Katy, Texas) and Henryk Man (Haifa, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "An insulated joint in a pipe-in-pipe system comprises a weld that connects two inner pipes while respective outer pipes circumferentially enclose the inner pipes and terminate at a position distal from the weld. Respective rings are coupled to the inner pipes at the distal position and the outer pipes are welded to the rings. A joint insulation material covers the wel...