Dean established American Datapath Inc. (ADI) in 1979 with Ron. His aptitude for computers brought the company up from a home-based, two-man business to the successful telecommunications leader it is today. Dean began his data processing career with Shell Oil in 1958, then worked for the Packard Bell government division where he held top secret security clearance programming the IBM 1401. He worked for IBM, and the University of Denver (DU). He lectured in computer science at DU from 1964 to 1984. Dean knows several programming languages, and loves to tinker with computers and networks. Immediately prior to ADI, he was Vice-president Information Services for Miller International Inc. for 13 years.