Herb Lutz is a leading international authority with multiple patents, publications, presentations, and courses in the field. He has degrees in chemistry and chemical engineering from the University of California, Santa Barbara and attended graduate school in Business and Chemical Engineering at MIT. He has worked in the field of separations and purification for 30 years. Herb is a principal consulting engineer with Millipore Corporation and currently focuses on the development, validation, scale-up and troubleshooting of new downstream purification applications such as virus clearance, sterile filtration, clarification, tangential flow filtration, chromatographic purification, and membrane adsorbers. He has also worked in product management, and strategic marketing. As a thought leader in the field, Herb is a frequent conference presenter, chair, and has assisted in organizing several conferences. He has published several book chapters including the Membrane Separation Section of Perry's Chemical Engineer's Handbook, holds a filtration patent, is on the scientific advisory board for Biopharm International, and has published in the areas of scaling, ultrafiltration, membrane adsorption, integrity testing and virus clearance. Mr. Lutz has taught membrane applications for Millipore, for the ASME Bioprocess course, and for the Society for Bioprocessing Professionals.