ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,087, issued on Nov. 18, was assigned to Archer Aviation Inc. (San Jose, Calif.).
"Battery and engine architecture for VTOL aircraft" was invented by William Martin Waide (Central Point, Ore.) and Abraham Karem (Santa Ana, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Apparatus, systems, and methods are contemplated for electric powered vertical takeoff and landing (eVTOL) aircraft. Such are craft are engineered to carry safely carry at least 500 pounds (approx. 227 kg) using a few (e.g., 2-4) rotors, generally variable speed rigid (non-articulated) rotors. It is contemplated that one or more rotors generate a significant amount of lift (e.g....