Knobbe/Martens: Intellectual Property Law

PTAB IPR & Post-Grant Proceedings

USPTO Trials and Post-Grant Proceedings

Knobbe Martens is a recognized PTAB “top firm” with the most patent attorneys in the U.S. We know the technology, the law and the Patent Office. Period.

Our firm is a leader in USPTO trials and post-grant proceedings before the Patent Trial and Appeal Board (PTAB). With more registered patent attorneys than any other U.S. law firm, we are uniquely positioned to represent both patent owners and challengers in these highly technical disputes. Our firm has been successfully litigating before the Patent Office for over 20 years — long before the PTAB’s founding in 2012.

Our track record speaks for itself. We have represented petitioners and patent owners in hundreds of PTAB litigation cases, including inter partes review (IPR), post-grant review (PGR), and covered business method (CBM) reviews. Our deep experience in patent law and technical litigation prowess is demonstrated in achieving success rates that far exceed the industry average.

Representing patent owners, we effectively prevent the institution of PTAB challenges in the first case, and save claims where trial is ordered. For petitioners, we kill patent claims after trial. On appeal, we deliver a deep bench of experienced appellate advocates and former clerks at the U.S. Court of Appeals for the Federal Circuit. Our experience in representing both patent owners and petitioners makes us particularly effective advocates. As a result, we are able to position disputes to realize a favorable result.

Follow recent developments in our PTAB Blog.


“Tier 1 Nationwide for Patent Litigation”, U.S. News – Best Lawyers® “Best Law Firms”, 2018

"Top 15 Firm Representing Petitioners and Patent Owners Combined"Managing IP, 2018

 “IP STAR” in PTAB Litigation, Managing IP, 2018

“Top IP Boutique Law Firm” in California, Daily Journal, 2018

“Best IP Boutique Law Firm,” Vault’s “Best Law Firms by Practice Area”, 2018

“Recommended IP Litigation Firm,” Benchmark Litigation, 2018

“Top Firm” representing patent owners, Lex Machina report, 2017

“#3 Largest IP Boutique Firm,” Law360, 2017

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