Membership
Tour
Register
Log in
Arlene A. Johnson
Follow
Person
Lawrencevill, NJ, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
On-line essay evaluation system
Patent number
5,987,302
Issue date
Nov 16, 1999
Educational Testing Service
Gary Driscoll
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS