ALEXANDRIA, Va., March 24 -- United States Patent no. D1,120,547, issued on March 24, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).

"Handheld cleaning appliance" was invented by Bingbing Jin (Changping District, China), Fanwei Meng (Changping District, China), Kai Sun (Changping District, China) and Xiujuan Jia (Changping District, China).

The patent was filed on Dec. 31, 2024, under Application No. D/981,653.

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