Kenneth R. Duff

📍 Lorton, VA: #38 of 120 inventorsTop 35%

🗺 Virginia: #12,642 of 34,511 inventorsTop 40%

Overall (All Time): #2,338,920 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D297825	Amphibious vehicle	—	1988-09-27
4387661	Amphibious motor-driven cycle	—	1983-06-14