Electro-Optical Sciences Inc. (EOS), an Irvington, NY-based medical technology company focusing on the early detection of melanoma, announced Charles Stiefel has been named to the company’s board of directors. This appointment will fill EOS’ ninth and final board seat. He brings more than 25 years of experience in the dermatology industry to the EOS board. Stiefel served as the chairman and CEO of Stiefel Laboratories Inc. from 2001 to July 2009 when he stepped down after overseeing GlaxoSmithKline's (GSK) successful acquisition of the company. He joined Stiefel Laboratories as general counsel in 1982 and was subsequently named executive vice president and then president of the company. He had served as a member of Stiefel Laboratories' BoD since 1975. At the time of GSK's acquisition in March of 2009, Stiefel Laboratories was the largest privately-held dermatology company in the world. In 2003, the South Florida Dermatology Foundation awarded him the Lifetime Achievement Award, and he was named Ernst & Young's Entrepreneur of the Year in Health Sciences for the State of Florida in 2006. In 2007, the American Academy of Dermatology honored him with its Distinguished Service Award.