ALEXANDRIA, Va., Oct. 6 -- United States Patent no. D1,152,281, issued on Oct. 6, was assigned to BEIJING ROBOROCK TECHNOLOGY Co. LTD. (Beijing).
"Cleaner head of floor cleaning appliance" was invented by Jinpeng Zheng (Beijing).
The patent was filed on June 23, 2025, under Application No. D/525,749.
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