RP

Roy A. Porter

BL Bell Telephone Laboratories: 3 patents #167 of 1,445Top 15%
📍 Whitehall, PA: #55 of 177 inventorsTop 35%
🗺 Pennsylvania: #23,606 of 74,527 inventorsTop 35%
Overall (All Time): #1,682,808 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4373990 Dry etching aluminum 1983-02-15
4208241 Device fabrication by plasma etching William Harshbarger, Hyman J. Levinstein, Cyril J. Mogab 1980-06-17
4181564 Fabrication of patterned silicon nitride insulating layers having gently sloping sidewalls Thomas N. Fogarty, William Harshbarger 1980-01-01