Greg Castanias is an appellate and intellectual property litigator with extensive Supreme Court and Federal Circuit advocacy experience. He heads Jones Day's Federal Circuit practice.
Greg's experience includes several arguments and appearances before the U.S. Supreme Court, as well as more than 40 arguments and approximately 150 appearances before the Federal Circuit, including some of the most pathbreaking cases in recent years. He also has argued several cases before other federal appeals courts and in state supreme courts from Alaska to Connecticut.
His intellectual property experience includes patents in technologies from genetics, diagnostics, and pharmaceuticals to chemistry, electronics, and mechanical fields, as well as copyright and trademark disputes. He has been recognized with honors from Chambers, Best Lawyers in America, Super Lawyers, Law360, LMG, Legal 500, IAM, and other independent publications.
Greg also has significant experience in state-tax disputes before the U.S. Supreme Court and state appellate courts.
In recent years, Greg has represented Abbott, Apple, Avid, DePuy Spine, DIRECTV, Fenwal, Histogen, Huawei, IBM, LabCorp, Limited Brands, MathWorks, Merial, Myriad Genetics, Pfizer, Procter & Gamble, Purdue Pharma, SanDisk, SAP, SAS Institute, Sinochem, Skullcandy, Tesoro, Transocean, and Visa.
The National Law Journal named Greg one of the Trailblazers and Pioneers in intellectual property law. The Legal 500 calls him a sharp and effective advocate who picks up the details of the matter quickly and a great issue-spotter and skilled advocate. And the IAM Patent 1000 says that Greg has an instinctual feel for the art of persuasion before the Federal Circuit, where he is highly respected.
Law Clerk to Judge George C. Pratt, United States Court of Appeals, Second Circuit (1991-1992)
Merial successfully defends patent-ineligibility ruling before Federal Circuit
Avid successfully defends PTAB patentability ruling before Federal Circuit
Avid revives data storage system patent infringement suit against Harmonic in Federal Circuit
Honors & Distinctions
Chambers - recognized practitioner, appellate (2014)
National Law Journal IP Trailblazer and Pioneer (2014)
Best Lawyers in America - appellate practice (2015-2016)
Legal 500 - leading appellate and IP lawyers (2007-2014)
Washington DC Super Lawyers (2009-2016)
IAM Patent 1000 - world's leading patent practitioners (2014-2016)
LMG Life Sciences Star (2012-2015)
Law360 Intellectual Property MVP (2012)
Fastcase 50 ( the law's smartest, most courageous innovators, techies, visionaries, and leaders ) (2012)