Jan. 1, 2003 - June 1, 2010
Adjunct Professor at Chemical Engineering & MAterials Science, Univ of MN
Aug. 15, 1992 - Jan. 1, 1995
Postdoctoral Fellow at Mayo Clinic and Foundation
Aug. 15, 1991 - Aug. 15, 1992
Director of Engineering at Veeco St. Paul/ (EPI)
June 15, 1989 - Aug. 15, 1991
Research Scientist at Army Research Labs