DD

Douglas J. Delperdang

PI Parham Industries: 2 patents #2 of 6Top 35%
📍 Claremore, OK: #64 of 228 inventorsTop 30%
🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%
Overall (All Time): #2,277,971 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5507139 Crop aerator having a pivoted header frame Leonard Bailey 1996-04-16
5450717 Crop aerator Leonard Bailey 1995-09-19