Dr. John E. Butler Ransohoff

Dr. Butler is an independent pharmaceutical R&D consultant with over 35 years’ experience in drug development, from discovery to clinical proof-of-concept. At Bayer, he led global NCE and biologics programs, including a plant-based NHL vaccine. He served as VP Global External Innovation and participated in EU-funded consortia. He is also an experienced expert witness in pharmaceutical IP litigation and Visiting Professor of Immunology at St George’s, University of London.