Charles Lewis

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Montgomery County, Somerset County, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for controlling item exposure in computer based t...
- Patent number 5,841,655
- Issue date Nov 24, 1998
- Educational Testing Service
- Martha L. Stocking
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Computerized mastery testing system, a computer administered variab...
- Patent number 5,059,127
- Issue date Oct 22, 1991
- Educational Testing Service
- Charles Lewis
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS