ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,984, issued on Oct. 21, was assigned to DELTA ELECTRONICS INC. (Taoyuan, Taiwan).
"Centrifugal fan" was invented by Kuo-Tung Hsu (Taoyuan, Taiwan), Wen-Chun Hsu (Taoyuan, Taiwan), Chao-Fu Yang (Taoyuan, Taiwan), Shuo-Sheng Hsu (Taoyuan, Taiwan) and Cheng-Yuan Lee (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A centrifugal fan includes a housing and an impeller. A top side of the housing has a main air inlet. A bottom side of the housing has a holder, a board, and plural supporting ribs connecting the holder and the board. The holder, the board, and the supporting ribs define a first secondary air inlet and a second secondary air in...