Inventor · disambiguated record
David R. Duke
Also filed as: DUKE DAVID · DUKE DAVID R
9 granted patents·1 pending application·319 citations·filing 2003–2012
90Inventor score
Files withBEAUJOT PATRICK M4ONE PASS IMPLEMENTS INC3101039130 SASKATCHEWAN LTD1DEAN BRIAN1MELANSON BARRY K1
Top patents by PatentIndex Score
10 records- 0194US8371238B2Sectional meter shut-off and agricultural implement having sectional meter shut-offONE PASS IMPLEMENTS INC·Filed 2012·Granted Feb 12, 2013·24 cites·8 claims
- 0294US8141504B2Sectional meter shut-off and agricultural implement having sectional meter shut-offDEAN BRIAN·Filed 2009·Granted Mar 27, 2012·88 cites·20 claims
- 0394US7690440B2Sectional meter shut-off and agricultural implement having sectional meter shut-offONE PASS IMPLEMENTS INC·Filed 2008·Granted Apr 6, 2010·97 cites·17 claims
- 0488US8170825B2Method and apparatus for calibrating seedersBEAUJOT PATRICK M·Filed 2009·Granted May 1, 2012·36 cites·5 claims
- 0578US7685951B2Apparatus for controlling the placement of seeds within a furrowONE PASS IMPLEMENTS INC·Filed 2006·Granted Mar 30, 2010·19 cites·16 claims
- 0675US8757073B2Metering assembly for an air seederBEAUJOT PATRICK M·Filed 2011·Granted Jun 24, 2014·17 cites·25 claims
- 0770US6955131B2Dual material placing apparatus with depth adjusting pivot point101039130 SASKATCHEWAN LTD·Filed 2003·Granted Oct 18, 2005·29 cites·17 claims
- 0862US8271164B2Guidance system for an agricultural implementMELANSON BARRY K·Filed 2007·Granted Sep 18, 2012·8 cites·12 claims
- 0960US8538716B2Method and apparatus for calibrating seedersBEAUJOT PATRICK M·Filed 2012·Granted Sep 17, 2013·1 cites·15 claims
- 1037US2012132116A1Ground opener assembly with guiding track for depth controlBEAUJOT PATRICK M·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →