Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CK

Charles M. Kohn

SESemitest: 3 patents #2 of 11Top 20%
Needham, MA: #353 of 796 inventorsTop 45%
Massachusetts: #33,482 of 88,656 inventorsTop 40%
Overall (All Time): #1,626,912 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6163163 Semiconductor material characterizing method and apparatus Martin Rommel, Sergey Liberman, Peter L. Domenicali, Alan H. Field, Glendon P. Marston 2000-12-19
6097205 Method and apparatus for characterizing a specimen of semiconductor material Sergey Liberman, Peter L. Domenicali, Alan H. Field, Glendon P. Marston 2000-08-01
6034535 Method utilizing a modulated light beam for determining characteristics such as the doping concentration profile of a specimen of semiconductor material Sergey Liberman, Peter L. Domenicali, Alan H. Field, Glendon P. Marston 2000-03-07