ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,832, issued on Aug. 5, was assigned to Halliburton Energy Services Inc. (Houston).

"Expandable metal sealing/anchoring tool" was invented by Brandon T. Least (Carrollton, Texas), Michael Linley Fripp (Carrollton, Texas) and Shanu Thottungal Eldho (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a sealing/anchoring element, a sealing/anchoring tool, and a method for sealing/anchoring within a wellbore. The sealing/anchoring element, in one aspect, includes a circlet having an inside surface having an inside diameter (di), an outside surface having an outside diameter (do), a width (w), and a wall thickness (t). In one aspect, the ...