The America Invents Act (AIA) created several new administrative proceedings for challenging the validity of issued patents at the United States Patent & Trademark Office (USPTO), including Inter Partes Reviews (IPRs) and Post-Grant Reviews (PGRs). Effective September 16, 2012, these proceedings rapidly became important and often used tools to challenge patents asserted against a party in a parallel context, e.g., in litigation or licensing, and are still important proceedings to consider in these contexts.

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Post-Grant Proceedings in the U.S. – A Strategic Comparative Analysis of IPRs, PGRs, and EPRs

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