ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,360, issued on June 3, was assigned to Shenzhen Hengmeite Technology Co. Ltd (Shenzhen, China).

"Silent high-speed fan" was invented by Yongcai Lin (Huilai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a silent high-speed fan, including a shell; an air duct is formed on the shell; an air inlet and an air outlet are respectively provided at two ends of the air duct; a boosting mechanism is arranged in the air duct; a rectification mechanism is arranged at the air outlet; the rectification mechanism includes a necking hood that covers the air outlet and a rectification blade group composed of a plurality of rect...