ALEXANDRIA, Va., July 28 -- United States Patent no. D1,137,597, issued on July 28, was assigned to SHENZHEN ANTOP TECHNOLOGY Co. LTD (Shenzhen, China).

"Air purifier" was invented by Ruidian Yang (Shenzhen, China) and Zhikai Li (Shenzhen, China).

The patent was filed on Oct. 10, 2023, under Application No. D/904,641.

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