US Patent Issued to Nanjing Roborock Innovation Technology on July 28 for "Washing machine" (Chinese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. D1,137,925, issued on July 28, was assigned to Nanjing Roborock Innovation Technology Co. Ltd. (Nanjing, China).

"Washing machine" was invented by Wanqi Li (Nanjing, China) and Pengfei Hao (Nanjing, China).

The patent was filed on Nov. 11, 2025, under Application No. D/032,222.

*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=D1137925&OS=D1137925&RS=D1137925

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