ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,216, issued on Dec. 30, was assigned to Wisk Aero LLC (Mountain View, Calif.).
"Aerodynamic rotor blade configurations" was invented by Geoffrey Alan Long (Montara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the invention are directed to systems and methods for reducing drag on an aircraft. The aircraft can include at least one propulsion system with rotor blades configured to reduce aerodynamic drag when the propulsion system is deactivated. To reduce the amount of drag, the rotor blades can be locked into an aerodynamic position, and prevented from passively spinning. Additionally, the rotor blades can be configured to ha...