DA

David C. Ahlgren

IBM: 1 patents #1,061 of 3,557Top 30%
📍 Hopewell Junction, NY: #18 of 56 inventorsTop 35%
🗺 New York: #1,999 of 7,187 inventorsTop 30%
Overall (1997): #164,933 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5656514 Method for making heterojunction bipolar transistor with self-aligned retrograde emitter profile Jack O. Chu, Martin Revitz, Paul A. Ronsheim, Mary J. Saccamango, David Sunderland 1997-08-12