DD

David R. Duke

OI One Pass Implements: 8 patents #4 of 18Top 25%
📍 Langbank, CA: #3 of 6 inventorsTop 50%
Overall (All Time): #576,839 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
8757073 Metering assembly for an air seeder Patrick M. Beaujot, Richard L. Russett, Robert J. Higgins, Jr., Kenneth M. Dlugan, Dave Hundeby +1 more 2014-06-24
8538716 Method and apparatus for calibrating seeders Patrick M. Beaujot, Brian F. Dean, Bruce W. Wilton 2013-09-17
8371238 Sectional meter shut-off and agricultural implement having sectional meter shut-off Brian F. Dean, Patrick M. Beaujot, Bruce W. Wilton, Barry K. Melanson, Justin Charles Varjassy +2 more 2013-02-12
8271164 Guidance system for an agricultural implement Barry K. Melanson, Bruce W. Wilton, Ross L. Filpula, Patrick M. Beaujot 2012-09-18
8170825 Method and apparatus for calibrating seeders Patrick M. Beaujot, Brian F. Dean, Bruce W. Wilton 2012-05-01
8141504 Sectional meter shut-off and agricultural implement having sectional meter shut-off Brian F. Dean, Patrick M. Beaujot, Bruce W. Wilton, Barry K. Melanson, Justin Charles Varjassy +2 more 2012-03-27
7690440 Sectional meter shut-off and agricultural implement having sectional meter shut-off Brian F. Dean, Patrick M. Beaujot, Bruce W. Wilton, Barry K. Melanson, Justin Charles Varjassy +2 more 2010-04-06
7685951 Apparatus for controlling the placement of seeds within a furrow Patrick M. Beaujot, Bruce W. Wilton, Brian F. Dean, Barry K. Melanson, Dave Hundeby 2010-03-30
6955131 Dual material placing apparatus with depth adjusting pivot point Patrick M. Beaujot, Penny Howells, Bruce W. Wilton, Brian F. Dean, A. Brian Kent 2005-10-18