DP

Duane Powell

JD John Deere: 2 patents #2,042 of 5,518Top 40%
AT American Soil Technologies: 1 patents #10 of 11Top 95%
Overall (All Time): #1,035,060 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7117763 Tool for installing threaded knives with lock nuts James A. Miller, Thomas Edward VanVeldhuizen 2006-10-10
7048070 Quick coupler assembly with dual hook members 2006-05-23
6896070 Quick coupler assembly with dual hook members Robert L. Wood, Peter Paul Johnston 2005-05-24
6170801 Valve closure system Robert B. Bebow 2001-01-09
5393314 Horizontal pass, multiple packed-bed gas scrubber Clarence E. Powell, Ralph F. Strigle, Jr. 1995-02-28