MD

Marvin G. Duncan

📍 West Linn, OR: #204 of 419 inventorsTop 50%
🗺 Oregon: #12,654 of 28,073 inventorsTop 50%
Overall (All Time): #2,281,558 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5556135 Score card — 1996-09-17
5123764 Utility cleaning tool for windshield wiper blades Don Duncan 1992-06-23