ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,645, issued on July 21, was assigned to Fourth Power Inc (Cambridge, Mass.).

"Graphite-based infrastructures for handling molten metals and methods of forming thereof" was invented by Tyler Young (Boston), Sandeep Pidaparti (Burlington, Mass.), Mike G. MacGregor (Salem, Mass.), Colin Clancy Kelsall (Cambridge, Mass.), Asegun Henry (Hyde Park, Mass.) and Adam King (Cambridge, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are graphite-based infrastructures for high-temperature and/or high-pressure applications and methods of fabricating thereof. Also described are thermal batteries including such infrastructures. An infrastruct...