ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,555, issued on Oct. 28, was assigned to Commonwealth Fusion Systems LLC (Devens, Mass.).

"Techniques for automated maintenance of a tokamak and related systems and methods" was invented by Brandon N. Sorbom (Cambridge, Mass.), Robert Mumgaard (Boston), Daniel Brunner (Savannah, Ga.), Alexander Creely (Boston), Cody Dennett (Arlington, Mass.), Matthew Vernacchia (Cambridge, Mass.), Caroline Sorensen (Harvard, Mass.) and Theodore Wyeth (Brookline, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are described for automatically removing and replacing components, including a vacuum vessel, from a tokamak. The inventors have recognized tha...