ALEXANDRIA, Va., June 9 -- United States Patent no. D1,073,225, issued on April 29, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).
"Handheld cleaning appliance" was invented by Bingbing Jin (Beijing), Fanwei Meng (Beijing), Kai Sun (Beijing) and Xiujuan Jia (Beijing).
The patent was filed on Oct. 19, 2023, under Application No. D/518,992.
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