WC

William G. Callahan

VA Varian Semiconductor Equipment Associates: 3 patents #187 of 513Top 40%
📍 Rockport, MA: #41 of 101 inventorsTop 45%
🗺 Massachusetts: #33,482 of 88,656 inventorsTop 40%
Overall (All Time): #1,566,659 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7663125 Ion beam current uniformity monitor, ion implanter and related method Morgan Evans, George M. Gammel, Norman E. Hussey, Gregg Norris, Joseph C. Olson 2010-02-16
7355188 Technique for uniformity tuning in an ion implanter system Joseph C. Olson, Jonathan Gerald England, Morgan Evans, Douglas Thomas Fielder, Gregg Norris +2 more 2008-04-08
6374144 Method and apparatus for controlling a system using hierarchical state machines Gary Lee Viviani, Nick Parisi 2002-04-16