US Patent Issued to ZEHNDER GROUP INTERNATIONAL on Aug. 4 for "Air filter for ventilation equipment" (Dutch Inventor)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. D1,139,887, issued on Aug. 4, was assigned to ZEHNDER GROUP INTERNATIONAL AG (Granichen, Switzerland).

"Air filter for ventilation equipment" was invented by Martijn Haddeman (Epe, Netherlands).

The patent was filed on March 1, 2023, under Application No. D/885,861.

*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=D1139887&OS=D1139887&RS=D1139887

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