Jeffrey T. Castellano

Jeffrey T. Castellano is a patent litigation attorney with over 15 years of experience, primarily focused on federal court disputes and administrative proceedings. His practice encompasses a wide range of technologies, including pharmaceuticals, medical devices, consumer electronics, chemicals, telecommunications, software, and Internet technologies. With four plaintiff-side and three defendant-side appearances in tracked cases, he demonstrates experience representing both patent holders and accused infringers, often serving as lead or local counsel.

Mr. Castellano is currently a Partner at DLA Piper, based in their Wilmington, Delaware office, having joined the firm in March 2022. Prior to DLA Piper, he worked with a nationally recognized boutique litigation firm in Delaware, which the provided case data indicates included appearances under "Castellano," likely referring to Castellano PLLC, an intellectual property law firm with expertise in IP litigation and trials.

His notable representations include acting as Lead Counsel for Veloxis Pharmaceuticals, Inc. in a Hatch-Waxman patent infringement action against Accord Healthcare, Inc. et al., which concluded with a consent judgment and permanent injunction preventing generic entry of tacrolimus until patent expiry in January 2024. He also served as Lead Counsel for the defendant in Baby Jogger, LLC v. Evenflo Company, Inc., a case involving car seat patents, which saw a Federal Circuit decision in December 2025 that affirmed in part, reversed in part, and vacated in part a district court's infringement judgment. Mr. Castellano is also involved as Lead Counsel for Moskowitz Family LLC in an ongoing patent infringement case against Nuvasive Inc. concerning spinal surgery patents.

Mr. Castellano possesses significant experience in inter partes review (IPR) and other Patent Trial and Appeal Board (PTAB) proceedings, as well as matters before the International Trade Commission (ITC). He earned his J.D. from Temple University in 2006 and his B.A. from Harvard University in 2000. He is admitted to practice in Delaware, before the United States Patent and Trademark Office, the U.S. Court of Appeals for the Federal Circuit, the U.S. Court of Appeals for the Third Circuit, and the U.S. District Court for the District of Delaware.