The Patent Trial and Appeal Board (PTAB) at the US Patent and Trademark Office (USPTO) has been quite busy over the past three years with new post-grant patent proceedings created by the America Invents Act. As of July 31, 2015, the PTAB had received more than 3,600 petitions for inter partes reviews (IPRs), post-grant reviews (PGRs), and reviews of covered business method (CBM) patents. Of these 3,600 cases, trials have been instituted in 1,576.