Pernix Therapeutics Holdings, Inc. announced that on May 6, 2016, the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO) denied a petition for inter partes review (IPR) filed by Graybar Pharmaceuticals, LLC (now Gray Square Pharmaceuticals, LLC) against Pozen, Inc. This petition, which was filed on November 12, 2015, sought review of certain claims of U.S. Patent No. 7,332,183 (’183 patent), which expires 2026. The ‘183 patent is licensed by Pernix and is one of several FDA Orange Book listed patents covering Treximet®, manufactured and sold by Pernix Therapeutics, (sumatriptan/naproxen sodium), a prescription medication for acute migraine attacks, with or without aura. Check out their website: pernixtx.com - meh?