Professor, Department of Chemical Engineering, College of Engineering, Kansas State University
Associate Professor, Department of Chemical Engineering, College of Engineering, Kansas State University
Research Engineer, Fraunhofer Gesellschaft (Stuttgart)
Research Assistant, Fraunhofer Gesellschaft (Stuttgart)
Associate Professor, Chemical Recovery
Assistant Professor, Chemical Recovery
Research Assistant, University of Texas at Austin
Research Scientist, Membrane Technology and Research, Inc.
Research Scientist, Pharmetrix Corp.