ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,465, issued on March 11, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Method and apparatus for curing loss-of-circulation in oil and gas wells with a eutectic alloy expandable patch" was invented by Saeed Abdullah Aldossary (Khobar, Saudi Arabia), Amjad Alshaarawi (Khobar, Saudi Arabia), Abdulwahab Aljohar (Dhahran, Saudi Arabia) and Meshari M. Alshalan (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole tool is disclosed that includes an expandable liner, an expansion cone, and an expansion cone driver connected to the expansion cone. The expandable liner includes an upper tubular body, a lower c...