Duane R. Greenquist — 2 Patents at Hoover Limited

Duane R. Greenquist has been granted 2 US patents while listed as an inventor at Hoover Limited. The first was granted in 1989 and the most recent in August 1991. Duane R. Greenquist ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Duane R. Greenquist in Beatrice, NE, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D319286	Corrugated valve guard	David L. Waltke	1991-08-20
4805652	Wash station for tanks	Larry D. Hartley	1989-02-21