DF

Douglas J. Frederick

📍 Potomac, MD: #596 of 998 inventorsTop 60%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #2,432,559 of 4,157,543Top 60%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12351264 System for creating downforce on a wheeled vehicle — 2025-07-08