DH

Douglas M. Heck

📍 Quakertown, PA: #175 of 274 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,846,257 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5097548 Inflatable self-supporting cover Robert W. Alexander 1992-03-24