SS

Sidney S. Seffren

RC Rca: 2 patents #592 of 1,739Top 35%
📍 Philadelphia, PA: #1,701 of 4,834 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,363,550 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4401775 Epoxy encapsulating formulation Thomas R. Pampalone 1983-08-30
4315269 Thick protective overcoat layer for optical video disc Allen Bloom, Alan E. Bell, Robert A. Bartolini 1982-02-09