DS

Douglas Kent Schroeder

📍 Estherville, IA: #4 of 22 inventorsTop 20%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,009,304 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9376262 Separated drive and sealing device for screw conveyor — 2016-06-28
4441511 Pneumatic material handling system for combines — 1984-04-10