Post Grant Proceedings

Inter Partes Review (IPR) and Post Grant Review (PGR)

Under the American Invents Act (AIA), the patentability of an issued patent can be challenged. Even though IPR and PGR (including the transitional covered business method patent (CBM)) procedures are relatively new, N&V has already gained significant experience handling such matters on behalf of both patent owners and petitioners. Having extensive experience in both Patent Office practice and litigation gives N&V a unique advantage in effectively and efficiently handling IPRs and PGRs for our clients.

Supplemental Examination

Supplemental examination is a procedure only available to a patent owner and involves asking the Patent Office to consider or correct any information the patent owner considers to be relevant to the patent. One common reason to consider supplemental examination is to bring additional prior art to the attention of the Patent Office. If a petition for supplemental examination is accepted by the Patent Office, an ex parte reexamination procedure is ordered. With its extensive ex parte reexamination experience, N&V is well suited to handle supplemental examinations on behalf of patent owners.

Ex Parte Reexamination

Ex parte reexaminations have been available since the early 1980s. N&V has been actively involved in ex parte reexaminations since their inception and continues that active involvement today. Ex parte reexaminations provide a valuable tool that, when used effectively, can provide significant benefits to the petitioner. We have extensive experience with ex parte reexaminations.


Patent reissue procedure is another option for correcting error in an issued patent. Reissue proceedings are similar to conventional patent prosecution. N&V has extensive experience with reissue proceedings, including both broadening and narrowing reissue applications.

If you are interested in legal representation or would like more information, please contact one of our attorneys or call us at 1-703-816-4000.