ALEXANDRIA, Va., April 7 -- United States Patent no. D1,121,903, issued on April 7, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).
"Cleaning robot" was invented by Danyang Liu (Beijing), Wanqi Li (Beijing) and Fanwei Meng (Beijing).
The patent was filed on July 19, 2024, under Application No. D/521,910.
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