Patent & Trademark Attorneys


Reissue, Ex Parte Reexam, Inter Partes Reexam, Inter Partes Review (IPR), Post-Grant Review (PGR) are important tools for patent owners and challengers

The American Invents Act (AIA) enacted on September 16, 2011, represents a significant change to US patent law. Inter partes review (IPR) and post grant review (PGR) are two of several changes that have had a substantial impact on litigation and prosecution. Hahn & Associates offers technical skill, practical experience, and litigation insight to navigate each of these proceedings cost-effectively and successfully.