ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,962, issued on Feb. 3, was assigned to Voliro AG (Zurich ETH-Zentrum, Switzerland).
"Aerial vehicle" was invented by Timo Muller (Zurich, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aerial vehicle including: a central frame, a tail extending from the central frame along a first axis, arms extending from the central frame and able to rotate around a second axis, the angular position of the arm with respect to the second axis defining an arm rotation angle. The tail has a tail rotor spinning around a tail rotor axis, the tail rotor axis being parallel to a third axis orthogonal to both first axis and second axis. The free end of each ...