Dean is the site head for the Drug Substance Development function within the company’s Process and Product Development (P&PD) organization in R&D. His responsibilities include directing a department in the areas of Cell Science and Technology, Purification Process Development, Analytical Sciences, and Functional Biocharacterization. He works on directing the development of IgG1 and IgG2 antibody products and other fusion protein products. He began his industrial career at Allergan in 1983 as a Research Engineer developing ocular implants and medical devices. In 1993, Dean joined Immunex in Drug Delivery and Formulation working on key products such as Leukine™ (GM-CSF); and Enbrel™ (TNFR fusion protein). Dean received his Ph.D. from University of Washington and completed a post-doctoral fellowship there in protein engineering.