PB

Peter K. Bertsch

HT Helix Technology: 1 patents #4 of 20Top 20%
📍 Harvard, MA: #2 of 14 inventorsTop 15%
🗺 Massachusetts: #582 of 2,831 inventorsTop 25%
Overall (1989): #70,171 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4873913 Dry roughing pump having a gas film bearing Gerald R. Pruitt 1989-10-17