ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,508, issued on Nov. 25, was assigned to Shenzhen Jisu Technology Co. Ltd. (Shenzhen, China).
"Centrifugal fan, neck fan, and vortex shell assembly" was invented by Jiahang Xie (Shenzhen, China), Guanzheng Zheng (Shenzhen, China) and Xiangfu Li (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A neck fan is provided and is configured to be worn around a neck of a user. The neck fan includes: an outer shell, disposed away from the neck; an inner shell, connected to the outer shell and disposed near the neck, wherein the inner shell and the outer shell cooperatively define a receiving space. A plurality of air outlets are defined in the i...