ALEXANDRIA, Va., Aug. 25 -- United States Patent no. D1,144,819, issued on Aug. 25, was assigned to Hoyii Technology Co. Ltd. (Tainan City, Taiwan).
"Box fan" was invented by Chien-I Chan (Tainan City, Taiwan).
The patent was filed on July 11, 2025, under Application No. D/012,605.
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