ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,086, issued on May 27, was assigned to Shenzhen Hesung Innovation Technology Co. LTD (Shenzhen, China).

"Mounting and demounting structure and fan" was invented by Xianglu Dai (Guangdong, China), Jie Feng (Guangdong, China) and Aimin He (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mounting and demounting structure includes a blade hub and multiple fan blades. Multiple mounting seats are disposed on the blade hub along a circumferential direction of the blade hub. The multiple fan blades are connected to the multiple mounting seats respectively. A locking leaf is rotatably connected to each mounting seat. The locking leaf is in ...