ALEXANDRIA, Va., Aug. 12 -- United States Patent no. D1,141,248, issued on Aug. 11, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).
"Rolling brush for cleaning robot" was invented by Zhiwei Zhou (Beijing), Pan Cheng (Beijing), Xiang Lin (Beijing) and Ming Liu (Beijing).
The patent was filed on June 27, 2024, under Application No. D/949,591.
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