ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,929, issued on Nov. 18.
"Portable fan" was invented by Di Huang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fan that is convenient for storage includes protective outer shell, protective inner shell, base, device shell, control board, switch, power motor, and fan blades. During use, pressing switch at the center of the back of device shell causes control board to control operation of power motor, which drives fan blades to rotate. The wind generated by the rotation of fan blades blows through the hollowed-out shapes of protective outer shell and protective inner shell towards the user. The protective outer shell and protective ...