On June 27, 2016, Unified filed a petition for inter partes review on a patent asserted by Hybrid Audio, LLC. That filing, IPR2016-01265, challenges all independent claims of U.S. Patent RE40,281, claims 5, 12, 18, 26, 34, 41, 48, 57, 66, 71, 76, 83,
90, 95, 100, 107, 114, 116, 118, and 120. 

A copy of the filing is found on our PTAB portal.