ALEXANDRIA, Va., Sept. 30 -- United States Patent no. D1,150,418, issued on Sept. 29, was assigned to SINOWELL (SHANGHAI) Co. LTD. (Shanghai).
"Exhaust fan" was invented by Jia Luo (Shanghai) and Siwen Li (Shanghai).
The patent was filed on Oct. 17, 2025, under Application No. D/028,489.
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