SD

Stephen P. Ducharme

IBM: 2 patents #32,839 of 70,183Top 50%
Overall (All Time): #2,290,018 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5460907 Photorefractive materials William E. Moerner, John Campbell Scott, Robert J. Twieg 1995-10-24
5064264 Photorefractive materials William E. Moerner, John Campbell Scott, Robert J. Twieg 1991-11-12