ALEXANDRIA, Va., Dec. 16 -- United States Patent no. D1,106,421, issued on Dec. 16.

"Air filter" was invented by Renliang Huang (Zhejiang, China).

The patent was filed on July 28, 2023, under Application No. D/880,898.

*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=D1106421&OS=D1106421&RS=D1106421

Disclaimer: Curated by HT Syndication....