DR

Daryl N. Roehrich

JD John Deere: 3 patents #1,495 of 5,518Top 30%
Overall (All Time): #1,634,810 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5936234 Seed planter monitoring system with optical sensors John C. Thomas, John D. Paulson, Jon Thomas Jacobson, Paul R. Bramel, Jason J. Wanner +1 more 1999-08-10
5831539 Air seeder blockage monitoring system John C. Thomas, Douglas L. Hauck, Christopher J. Skarie, Jon Thomas Jacobson, John D. Paulson +2 more 1998-11-03
5831542 Air seeder blockage monitoring system John C. Thomas, Douglas L. Hauck, Christopher J. Skarie, Jon Thomas Jacobson, John D. Paulson +1 more 1998-11-03