This document provides a summary of key changes and impacts from the America Invents Act of 2011, which overhauled the U.S. patent system. The Act transitions the U.S. from a "first to invent" system to a "first to file" system, increasing the urgency to file patent applications quickly. It also aims to improve patent quality through new procedures allowing easier challenges of patents outside the court system. However, the Act likely will not cut back on large patent lawsuit damages or significantly impact patent "trolls" in the near future. The biggest change is transitioning to a "first to file" priority system.