ALEXANDRIA, Va., June 6 -- United States Patent no. D1,072,222, issued on April 22.

"Air purifier filter" was invented by Juan Li (Guangdong, China).

The patent was filed on Jan. 22, 2025, under Application No. D/987,165.

*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=D1072222&OS=D1072222&RS=D1072222

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