KC

Ker-Ming Chang

ES Educational Testing Service: 2 patents #82 of 260Top 35%
Overall (All Time): #2,134,036 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7519810 Methods for conducting server-side encryption/decryption-on-demand Edwin Blew 2009-04-14
5194966 Optical scanner threshold setting method and sheet Dennis Quardt 1993-03-16