JD

John M. Dempsey

📍 East Longmeadow, MA: #61 of 107 inventorsTop 60%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,023,421 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4548371 Ultralight aircraft — 1985-10-22