John P. Ranieri is vice president – DuPont BioMaterials Group. He is responsible for the development of a broad portfolio of renewably sourced products including a portfolio of biomaterials ranging from renewable polymers to new innovations in peptides and Omega-3 fatty acids as well as innovations for the medical space. Mr. Ranieri oversees the DuPont™ Sorona®, Cerenol™, BioSpecialties and BioMedical businesses.

He joined DuPont in 2002 as vice president and general manager - DuPont Bio-Based Materials, which originally included only the Sorona® business. During his leadership, the Bio-Based Materials business grew to include a full range of renewably sourced product offerings, including the creation of the DuPont BioFuels business.

In March 2006 he was named vice president and general manager - DuPont Applied BioSciences - Energy & Specialties with responsibility for the BioFuels and Specialties businesses. He was named to his current position in October 2008.

Prior to joining DuPont, he was vice president and managing director of the cardiovascular and biomaterials divisions at Aortech International. He was previously vice president of Sulzer Biologics and corporate director responsible for the start-up, design and management of the therapeutics portfolio for Sulzer Innotec.

Mr. Ranieri received a Ph.D. in medical science and a master's degree in materials engineering as a Miciolli fellow from Brown University and was an assistant doctorant at the division of surgical research and gene therapy at Lausanne University Medical School. He completed the advanced management program at the Wharton Business School where he was a visiting fellow at their school of management and entrepreneurial studies.