ALEXANDRIA, Va., Nov. 25 -- United States Patent no. D1,103,356, issued on Nov. 25, was assigned to Zhejiang Zhizhan Technology Co. Ltd (Jinhua, China).
"Air filter" was invented by Laikui Lu (Anhui Province, China) and Conghua Yu (Shandong Province, China).
The patent was filed on Oct. 28, 2024, under Application No. D/970,384.
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