ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,513, issued on Nov. 25, was assigned to Guangzhou Juchuang Electronic Technology Co. Ltd. (Guangdong, China).
"Hollow-structured cooling fan" was invented by Hao Xun (Guangdong, China), Chao Wu (Guangdong, China) and Jiawei Lv (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hollow-structured cooling fan includes a fan frame, a fan blade, a display module, and a drive module. A mounting tube is disposed in a central portion of the fan frame, a first bearing is disposed within the mounting tube; a sleeve shaft is disposed in a central portion of the fan blade, and inserted into the mounting tube, and a second bearing is disposed wit...