ALEXANDRIA, Va., April 15 -- United States Patent no. D1,122,548, issued on April 14, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).
"Dust box for cleaning appliance" was invented by Leilei Guan (Beijing) and Baokui Zhang (Beijing).
The patent was filed on Sept. 4, 2024, under Application No. D/522,372.
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