WL

William Leavitt

VA Varian Semiconductor Equipment Associates: 4 patents #157 of 513Top 35%
GT Gtat: 1 patents #60 of 101Top 60%
📍 Haverhill, MA: #33 of 285 inventorsTop 15%
🗺 Massachusetts: #20,307 of 88,656 inventorsTop 25%
Overall (All Time): #838,605 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9934928 Source housing assembly for controlling ion beam extraction stability and ion beam current Shengwu Chang, Jeff Burgess, Michael St Peter, Matt Mosher, Joe Olson +1 more 2018-04-03
9679745 Controlling an ion beam in a wide beam current operation range Shengwu Chang, Kristen Rounds, Daniel V. Brosnan 2017-06-13
9396903 Apparatus and method to control ion beam current Shengwu Chang, Kristen Rounds, Michael St. Peter 2016-07-19
8426829 Ion implantation apparatus Theodore H. Smick, Joseph Gillespie, William H. Park, Paul Eide, Drew Arnold +1 more 2013-04-23
6744017 Wafer heating devices for use in ion implantation systems Christopher W. Berry, Thomas A. Doyon, David Sabo 2004-06-01
6114705 System for correcting eccentricity and rotational error of a workpiece David S. Holbrook 2000-09-05