Inventor

BERGAN JOHN RICHARD

US3 patents

Patents

3 patents

US6322366B1Nov 27, 2001

Instructional management system

ASSESSMENT TECHNOLOGY INC125 citations91

US6468085B1Oct 22, 2002

Scale builder and method

ASSESSMENT TECHNOLOGY INC38 citations84

US7065516B1Jun 20, 2006

Data checker apparatus and method

ASSESSMENT TECHNOLOGY INC17 citations79