DD

Daniel Lee Dufner

JD John Deere: 2 patents #2,042 of 5,518Top 40%
📍 Waterloo, IA: #133 of 348 inventorsTop 40%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,212,460 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6467748 Hydraulic circuit for active suspension system Troy E. Schick 2002-10-22
6371459 Active suspension with offload adjustment Troy E. Schick 2002-04-16