PROLOR Biotech, Inc. (OTC Bulletin Board: PBTH), formerly Modigene Inc., announced that the U. S. Patent and Trademark Office (PTO) has issued two new patents for the company's long-acting CTP-enhanced human growth hormone (hGH-CTP) and human erythropoietin (EPO-CTP). The patents cover the composition of PROLOR's proprietary pharmaceutical compounds as well as certain associated methods.