Several parts of the America Invents Act (the “AIA”) became law on Sept. 16, 2012, sparking some of the most meaningful changes to patent law seen in decades. One hot provision in the new law is the ability for one to challenge a patent’s validity in a new inter partes review (“IPR”) process. This legal tool could prove to be very valuable in solving some of the biggest business challenges facing generic pharma. This post addresses the business case for generic pharma using the IPR process.