US Patent Office Post-Grant Proceedings

For decades, we have advocated for clients in post-grant proceedings before the USPTO, including the second-ever inter partes review argued before the Patent Trial and Appeal Board (PTAB). Our experience spans appeals, reissues, reexaminations, interferences, inter partes reviews, and covered business method reviews.

Serving clients from offices in major technology hubs around the world—including an office near the USPTO in Washington, DC—our lawyers possess technical knowledge and dispute experience. We routinely litigate complex patent matters, including taking and defending depositions and arguing before courts and administrative panels. Notably, we have had a number of inter partes reviews and covered business method reviews dismissed by the PTAB.


Our patent lawyers and agents have technical or scientific backgrounds, with many holding advanced degrees (including PhDs). A number of our lawyers also bring relevant technical experience from roles prior to their law careers and as former USTPO examiners.

Our technical experience crosses many disciplines, including electrical, computer hardware and software, business methods (including ecommerce and financial services), mechanical, life sciences (biotechnology and pharmaceuticals), specialty chemicals, medical devices, diagnostics, semiconductors, clean technology, financial technology, and consumer products.


  • Achieved a clean-sweep victory for our clients responding to 12 separate inter partes reviews, resulting in all patents determined to be patentable
  • Obtained early dismissal of four “covered business method” reviews targeting patents owned by the operator of one of the world’s leading container shipping portals
  • Represented a major university in a district court litigation and concurrent reexamination
  • Persuaded the USPTO, in representing the requestor, that the codefendants in a joint defense group could share prior art and put on a joint defense in the district court without all members of the group being subject to estoppel resulting from the reexamination
  • Invalidated a competitor’s inter partes reexamination proceedings on behalf of a client
  • Represented a client in one of the first-ever inter partes reviews before the USPTO