DP

David M. Pruett

PO Portec: 4 patents #1 of 52Top 2%
📍 Cañon City, CO: #6 of 60 inventorsTop 10%
🗺 Colorado: #10,703 of 40,980 inventorsTop 30%
Overall (All Time): #1,241,470 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7650979 Ball transfer device Stephen D. Szarkowski, Rodney R. Mishmash, Raymond D. Middlemiss, Ernest L. Klemm 2010-01-26
5143207 Tension controlling and shock absorbing apparatus for an endless conveyor 1992-09-01
5060788 Chain guide mounting apparatus Richard A. Compton 1991-10-29
4723807 Wheel and track system Robert D. Brown 1988-02-09