ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,406, issued on Feb. 10, was assigned to Hybrid Drones Ltd. (London).

"Unmanned aerial vehicle" was invented by Angelo Grubisic (London) and Stephen Prior (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an unmanned aerial vehicle (100) comprising: a flight system (4) for producing thrust to manoeuvre the unmanned aerial vehicle (100). The flight system (4) comprises: one or more flight rotors (42) defining a plane passing through each flight rotor and a thrust direction generally perpendicular to the plane; and one or more electric motor (44) for driving the one or more flight rotors (42). The unmanned aerial veh...