US Patent Issued to Shenzhen Yinfeng Innovation Technology on Sept. 29 for "Mattress" (Chinese Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. D1,149,440, issued on Sept. 29, was assigned to Shenzhen Yinfeng Innovation Technology Co. Ltd. (Shenzhen, China).

"Mattress" was invented by Shunkang Huang (Shenzhen, China).

The patent was filed on Sept. 4, 2025, under Application No. D/021,415.

*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=D1149440&OS=D1149440&RS=D1149440

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