DJ

Douglas Johnson

📍 Prospect Park, PA: #2 of 3 inventorsTop 70%
🗺 Pennsylvania: #2,522 of 7,529 inventorsTop 35%
Overall (2017): #437,514 of 506,227Top 90%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9610817 Modular and morphable air vehicle John W. Piasecki, Frederick W. Piasecki, Brian Geiger, David Pitcairn 2017-04-04