The Patent Pilot Program (PPP), a ten-year pilot program addressing the assignment of patent cases in certain U.S. district courts, was established on January 4, 2011, by Pub. L. No. 111-349. At the request of the Judicial Conference’s Committee on Court Administration and Case Management, the Federal Judicial Center has been studying the PPP since the program's inception. This midpoint report presents key findings from the first five years of the program, gathering data for all patent cases filed on or after the individual PPP start date designated by each of the 13 current pilot courts through January 5, 2016. In that time, just over 12,000 patent cases were filed in the participating pilot districts.