ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,028, issued on July 28, was assigned to AerBots Inc. (Plymouth, Mich.).

"Unmanned land vehicle" was invented by Mario Swaidan (Plymouth, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Drones with propulsions systems supported in a housing are provided where the orientation of the housing is independent from the orientation of the propulsion system. Drones are provided where a propulsion system is rotatable about a first axis and a second axis that is perpendicular to the first axis, permitting the propulsion system to assume substantially any position with a sphere. Drones are provided where a bladeless inner tube is rotatable about a first ax...