RS

Roger D. Stephenson

JD John Deere: 28 patents #73 of 5,518Top 2%
AG Abb Automation Gmbh: 1 patents #22 of 103Top 25%
AC Abb Power T&D Company: 1 patents #104 of 231Top 50%
📍 Ottumwa, IA: #5 of 143 inventorsTop 4%
🗺 Iowa: #310 of 15,303 inventorsTop 3%
Overall (All Time): #124,550 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
4805927 Hitch adapter for use in connecting semi-integral, PTO-driven implements to tractor three-point hitch James C. Walters, Craig A. Richardson 1989-02-21
4793430 Hitch and drive structure for PTO-driven, semi-integral implement James C. Walters, Craig A. Richardson 1988-12-27
4776606 Hitch and drive structure for pto-driven, semi-integral implement James C. Walters, Craig A. Richardson 1988-10-11
4738461 Implement hitch adaptor and transmission assembly for allowing towing tractor to turn sharply James C. Walters, Craig A. Richardson, J. Clark Fickle 1988-04-19
4590751 Double windrowing attachment for harvester 1986-05-27