RF

Richard R. Fergle

AS American Crystal Sugar: 3 patents #2 of 14Top 15%
📍 Cloquet, MN: #25 of 125 inventorsTop 20%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,657,906 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5213836 Method of preparation of sugar beet fiber material Terry D. McGillivray, David R. Groom, Dennis P. Brown, Gregory Haakenson 1993-05-25
4992288 Method of removing sulfite from sugarbeets Roland F. Olson 1991-02-12
4882190 Method of producing sulfite-free sugarbeet pulp Roland F. Olson 1989-11-21