ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,198, issued on May 19, was assigned to Delta Electronics Inc. (Taoyuan City, Taiwan).
"Diagonal fan" was invented by Pei-Han Chiu (Taoyuan City, Taiwan), Sheng-Chieh Su (Taoyuan City, Taiwan) and Chien-Ming Lee (Taoyuan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A diagonal fan is disclosed and includes a frame and an impeller. The frame includes an inlet, an outlet, and an accommodation space. The inlet and the outlet are communicated through the accommodation space. The impeller is accommodated within the accommodation space and includes a hub, a cylindrical part, a conical section shell and a plurality of blades, wherein the cylind...