ALEXANDRIA, Va., Aug. 5 -- United States Patent no. D1,139,844, issued on Aug. 4.

"Back flow valve" was invented by Pascual Hernandez Sanchez (Los Angeles).

The patent was filed on Aug. 19, 2024, under Application No. D/958,386.

*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=D1139844&OS=D1139844&RS=D1139844

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