GAITHERSBURG, Md., June 13 /PRNewswire-FirstCall/ -- Iomai Corporation (Nasdaq: IOMI - News) announced today that the U.S. Patent and Trademark Office has awarded a new U.S. Patent “Adjuvant for transcutaneous immunization” (Number 7,037,499). The patent outlines methods for inducing an immune response to Iomai’s novel skin-patch-based vaccines.