JR

John Ruffell

EA Eaton: 1 patents #46 of 178Top 30%
📍 Auckland, MA: #1 of 3 inventorsTop 35%
Overall (1989): #93,123 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4812663 Calorimetric dose monitor for ion implantation equipment D. H. Douglas-Hamilton 1989-03-14