ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,964, issued on June 17, was assigned to XGS Energy Inc. (Palo Alto, Calif.).
"Geoheat harvesting enhancement" was invented by Piotr D. Moncarz (Palo Alto, Calif.), Sharat Vishwanath Chandrasekhar (Dallas) and Poodipeddi V. Suryanarayana (Plano, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for improved geoheat harvesting enhancements are presented in which a wellbore contains a closed loop geoheat harvesting system that is thermally coupled to a hot and dry rock formation via thermal reach enhancement structures that extend from the wellbore into the formation and that are filled with a thermally conductive filler. Preferr...