Thomas J. DesRosier, Esquire Senior Vice President; General Counsel; Chief Legal Officer Thomas DesRosier joined Genzyme in 1999. He is responsible for the management of the company’s legal affairs worldwide, including supervision of more than 50 internal legal professionals. Before he joined Genzyme, Mr. DesRosier was assistant general counsel for patents at American Home Products Corp., where he directed intellectual property efforts for the company’s pharmaceutical products. Mr. DesRosier has also served as vice president and chief patent counsel for Genetics Institute Inc. and held several intellectual property positions at E.I. DuPont de Nemours and Company and New England Nuclear Corp. He earned a J.D. from Wake Forest University School of Law and a B.A. from the University of Vermont.