as Acting USC(IP)s before and after, respectively. Lee was succeeded by David Kappos. Prior, John Doll was Acting Under Secretary, after replacing Jon Dudas, who resigned on January 20, 2009. Dudas had been appointed by President George W. Bush in July 2004, and had served as acting Under Secretary since 2002. Previous Under Secretaries include James E. Rogan and inaugural officeholder Q. Todd Dickinson. See also List of people who have headed the United States Patent Office References