ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,520,979, issued on Jan. 13, was assigned to Dyson Technology Ltd. (Malmesbury, Great Britain).
"Autonomous surface treatment apparatus" was invented by James Murray Orchard (Bath, Great Britain), Christopher Hugo Molesworth Birdwood (Gloucester, Great Britain), Joseph David Evans (Swindon, Great Britain) and David Finlay Wyatt (Gloucester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An autonomous surface cleaning apparatus includes a body including a chassis and an outer shell mounted to the chassis, a drive system carried by the body, a cleaning assembly projecting forward beyond a front surface of the outer shell, the cleaning assembl...