ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,388, issued on Oct. 14, was assigned to Huizhou Xunshuo Technology Co. Ltd (Huizhou, China).
"Fan with multilayer fan blades" was invented by Ganglong Fan (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a fan with multilayer fan blades, including a fan frame and a motor. Multilayer fan blades are arranged in the fan frame; the multilayer fan blades are connected to the motor, and the multilayer fan blades are arranged with at least two fan blade connection rings. According to the above solution, by utilizing the design of blade shapes and the number of different curved surfaces of the multilayer fan blades, an inner lay...