Bill Ketterhagen is a Principal Research Engineer in the Process Engineering Sciences group within AbbVie Research and Development in North Chicago, IL. He has extensive experience in developing and implementing predictive models and engineering solutions in support of pharmaceutical drug product development. He has driven the use of materials characterization and small-scale experimentation to ensure models are parameterized and validated with robust experimental data. These combined experimental / modeling predictive approaches have been applied across drug product processing operations, including the areas of powder storage and handling, feeding, granulation, and film coating processes, amongst others. Bill has published work in numerous peer-reviewed papers and invited presentations at national and international conferences, and in 2017, won the AIChE PD2M Award for Outstanding Contribution to QbD for Drug Product. Bill earned a B.S. in Chemical Engineering from the University of Wisconsin – Madison and a Ph.D. in Chemical Engineering from Purdue University.