DT

David J. Twiss

VA Varian Semiconductor Equipment Associates: 1 patents #304 of 513Top 60%
📍 Topsfield, MA: #109 of 151 inventorsTop 75%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #3,222,284 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8263944 Directional gas injection for an ion source cathode assembly John Bon-Woong Koo, Chris Campbell, Frank Sinclair, Alexander S. Perel, Craig R. Chaney +2 more 2012-09-11