Dr. Williams has been President and C.E.O. of Tepha since its formation in September 1998.  He is also a cofounder of Metabolix, Tepha's sister company, and has served on the Metabolix board of directors since 1992.  At Metabolix, his responsibilities as vice president included research and development, legal affairs, business development, as well as financial issues.  During his tenure at Metabolix, Dr. Williams focused on medical and other specialty applications of the firm's products, of which all medical applications have since been transferred to Tepha.  Prior to cofounding Metabolix, he was a lecturer in organic chemistry at Manchester University in England and a visiting scientist and NATO postdoctoral fellow at the Massachusetts Institute of Technology.  Dr. Williams earned a Ph.D. in organic chemistry from Cambridge University, England.

Dr. Ahuja is the Director of Business Development for Tepha and is responsible for guiding medical device development, pursuing strategic alliances with research collaborators and marketing partners, and conducting strategic corporate planning.  Dr. Ahuja's medical specialties include general pediatric medicine and pediatric cardiology, and he performed his subspecialty training at Children's Hospital, Boston and Harvard Medical School.  He has also consulted to the biopharmaceutical industry with the Boston Consulting Group.  Dr. Ahuja earned his M.D. at Washington University in St. Louis, and he also earned an M.B.A from Harvard Business School.

Mr. Rizik is the Vice President of Operations for Tepha and is responsible for all aspects of new technology development, manufacturing, engineering and quality.  He has over twenty years experience developing products and processes in the surgical and medical device industries.  As a Senior Director at U.S. Surgical Corporation (Tyco International), he spearheaded the development of a state-of-the-art surgical needle manufacturing facility for cardiovascular, plastic and ophthalmic products.  In addition as an R&D Manager, he has developed and commercialized numerous products with Ethicon Inc., a Johnson and Johnson company, such as Vicryl, PDS, Prolene, Polyester, Silk and Nylon sutures.  His insight led to the company's first automated extrusion system.  Mr. Rizik earned a M.S. in mechanical and aerospace engineering at Rutgers University.