April 1, 2013 - Feb. 1, 2014
Vice President/Principal Scientist at EarthClean
Jan. 1, 2004 - Nov. 1, 2012
Senior Scientist at Ecolab
March 1, 2000 - Dec. 1, 2003
Research Group Leader at Samsung
March 1, 1997 - March 1, 2000
Senior Research Specialist at Imation
Jan. 1, 1985 - March 1, 1997
Senior Research Specialist at 3M