ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,791, issued on Sept. 1, was assigned to Limo Air Drive Corp. (Road Town, British Virgin Islands).

"Systems and methods for aircraft propulsion" was invented by Olga Viktorovna Silina (Cernobbio, Italy), Mikhail Vasiliev (Moscow) and Sergey Alexandrovich Vybornov (Cernobbio, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flotation system for an aircraft that includes a battery system providing power to the aircraft is presented. The flotation system can include a water propulsion system enables maneuvering of the aircraft, such as a seaplane, on the surface of water. The system can include waterjets located on floats of the aircraft that enab...