Posts Tagged: IPR Petitions


Three rounds of IPR petitions invalidates VirnetX patent after Apple gets around statute of limitations

Luckily for Apple and Microsoft, however, VirnetX did not assert the ‘135 patent against Mangrove Partners, a hedge fund, which filed a petition for IPR against the ‘135 patent …
By Steve Brachmann
4 days ago 3

Crossing the Chasm: Avoiding and Surviving the PTAB

In 2012, the American Invents Act established three new administrative procedures: post grant review (PGR), inter-partes review (IPR), and covered business method patent (CBM) review. In each of …

Prepare for More Estoppel if the Supreme Court Reverses Federal Circuit on Partial IPR Institutions

Partial institutions lessen the value of estoppel because the petitioner avoids estoppel on claims that were challenged but not instituted. The PTAB never issues a final written …
By Jason German & Wayne Stacy
5 months ago 1

Sovereign Immunity of Patents: While a Strong Benefit to Patent Owners, These Patents Remain Subject to Traditional Challenges

The United States Patent Trial and Appeal Board (“PTAB”) recently dismissed another inter partes review (“IPR”) based on an assertion of 11th Amendment sovereign immunity.  This decision …

Is TC Heartland All Good News for Patent Litigation Defendants?

Joint-defense groups lower costs and increase efficiencies for all defendants in the groups. Certain prominent patent litigation boutiques and Big Law departments have skillfully made a business …
By Zachary Silbersher
6 months ago 2