JE

John R. Ewans

📍 Shirley, NY: #34 of 67 inventorsTop 55%
🗺 New York: #67,335 of 115,490 inventorsTop 60%
Overall (All Time): #4,121,685 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4227856 Reverse velocity rotor system for rotorcraft Thomas D. Verrill 1980-10-14