HS

Herman P. Schwan

DU Drexel University: 1 patents #368 of 838Top 45%
📍 Radnor, PA: #104 of 151 inventorsTop 70%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,820,086 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5196799 Method and apparatus for testing a protective barrier material for pinholes and tear strength Richard B. Beard, Robert Schmukler, Frederick Prout 1993-03-23