Associate: Allegretti & Witcoff, Ltd., Chicago, Illinois, 1989-1991; Stern, Kesler, Goldstein & Fox, P.L.L.C., Washington, D.C., 1991-1993. Assistant Patent Counsel: Millipore Corp., 1993-1996; Bayer Corporation, 1996-1999; Ventana Medical Systems, 1999-2008. Published Works: Jones, Huw R., Wilks, Paul A., "The CO2 Laser and Infrared Spectroscopy," American Laboratory, March, 1982. Teaching/Lectures: Faculty Presenter, Arizona State Bar Convention, June 19, 2008, "Intellectual Property Contracts"; Chairman and Speaker, BIOZONA 2008 Panel on "2007 Patent Reform", April 8, 2008; Panel participant, First Annual Quarles & Brady Biotechnology Forum, University of Arizona College of Law, "The Experimental Use of Exception", February 12, 2004; Presentation at BIO-Southern Arizona, Southwest Biopartnering Conference & Exposition, "Cooperative Research and Technology Act (CREATE) of 2004", April 6, 2004.