DJ

David C. Johanson

UF US Air Force: 1 patents #6,190 of 16,312Top 40%
📍 Warminster, PA: #135 of 248 inventorsTop 55%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,062,424 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4421393 Visual field perimeter and psychomotor tracking performance measuring apparatus Malcolm M. Cohen, James Joseph Palumbo, John Nelson 1983-12-20