DC

Douglass Duane Coolbaugh

IBM: 1 patents #44,794 of 70,183Top 65%
📍 South Burlington, VT: #758 of 1,136 inventorsTop 70%
🗺 Vermont: #3,027 of 4,968 inventorsTop 65%
Overall (All Time): #3,494,896 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6815802 Incorporation of carbon in silicon/silicon germanium epitaxial layer to enhance yield for Si-Ge bipolar technology Jack O. Chu, James S. Dunn, David R. Greenberg, David L. Harame, Basanth Jagannathan +4 more 2004-11-09