Arnold & Porter is home to a robust patent litigation practice group with strong credentials in Section 337 disputes before the ITC and trade secret theft disputes. The group boats a deep, international bench of IP attorneys and services industry leaders in technology and biosciences. Dina Hayes, a Chicago-based trial attorney well-versed in trade secret and multiple-patent litigation, chairs the practice.. In 2025, the firm has expanded with the arrival of Abby Parsons and Brent Ray from King & Spalding as well as two counsels from Lee Sheikh & Haan. Partners Michael Berta and Jennifer Sklenar have left the firm.
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Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: Billing & efficiency
Client satisfaction: Sector knowledge
Client satisfaction: NPS ®
Key clients
- Charter Communications
- Motive Technologies
- Bayer
- Regeneron Pharmaceuticals
- Samsung
- ACQIS, LLC
- Leica Microsystems Inc.
- Sanofi
- Pharmacosmos
- Pfizer
- Nike
- Rex Computing
Work highlights
Represented Charter Communications in a high-stakes patent infringement lawsuit, securing a unanimous jury verdict of non-infringement in the Eastern District of Texas against claims seeking over $1 billion in damages relating to video streaming technology.
Led Motive Technologies in a competitor patent infringement trial, obtaining a unanimous jury verdict of non-infringement on all asserted patents following an eight-day jury trial in the Northern District of California.
Advised Samsung Electronics in multi-front patent disputes involving audio signal processing technology, successfully challenging 14 asserted patents through USPTO post-grant proceedings and related Federal Circuit appeals, leading to invalidation of the vast majority of claims and a very favorable settlement.
Practice head
Dina Hayes; Evan M. Rothstein
Other key lawyers
Abby Parsons; Brent Ray