Robert B. Hammett

📍 Covington, LA: #64 of 189 inventorsTop 35%

🗺 Louisiana: #3,194 of 10,876 inventorsTop 30%

Overall (All Time): #2,311,583 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5144917	Free-piston engine	—	1992-09-08
4920928	Momentum engine	—	1990-05-01