1984-1986, manager in Products Control
1983-1984, sales and product support manager in Industrial Lift Truck Division
1975-1977, manager for South American Sales
1977-1983, manager of Merchandising Division, General Offices
Microsoft Corporation, 1991-1994, product manager, then general manager of Expedia unit, 1994-1999
Upon notification of Barton's retirement, the board of directors at Caterpillar named James W. Owens as CEO
Barton retired from Caterpillar at age 64 on January 31, 2004, due to the company's mandatory retirement rule.
Glen Barton worked as a trainee in 1961 to 1964.
1964-1968, 1972-1975, sales associate for Caterpillar Overseas
1987-1989, vice president of Caterpillar, president of Solar Turbines
1999-2004, chairman and CEO.
1990-1998, group president
1989-1990, executive vice president