US Patent Issued to Jerry D. Schulz on Sept. 29 for "Pipe with corrugated internal helical flight" (Minnesota Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. D1,150,785, issued on Sept. 29, was assigned to Jerry D. Schulz (Apple Valley, Minn.).

"Pipe with corrugated internal helical flight" was invented by Jerry D. Schulz (Apple Valley, Minn.), Alexander B. Lemaire (Edina, Minn.) and Charles A. Lemaire (Apple Valley, Minn.).

The patent was filed on Oct. 24, 2025, under Application No. D/029,696.

*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=D1150785&OS=D1150785&RS=D1150785

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