ALEXANDRIA, Va., July 3 -- United States Patent no. D1,081,948, issued on July 1, was assigned to Hunan Douhe Intelligent Appliance Co. Ltd (Changsha, China).
"Fan purifier" was invented by Weiwen Zhong (Hunan, China) and Xianhao Cai (Hunan, China).
The patent was filed on Oct. 23, 2023, under Application No. D/905,512.
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