US Patent Issued to Beijing Roborock Technology on April 7 for "Sewage tank filter for cleaning appliance" (Chinese Inventor)

ALEXANDRIA, Va., April 7 -- United States Patent no. D1,121,905, issued on April 7, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).

"Sewage tank filter for cleaning appliance" was invented by Huanmin Chen (Changping District, China).

The patent was filed on Aug. 1, 2024, under Application No. D/522,076.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=D1121905&OS=D1121905&RS=D1121905

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