Polsinelli’s Patent Litigation team partners with clients to develop creative and cost-effective solutions for the complex issues that arise in patent litigation. Our team represents global, national, and regional companies, and individuals in patent matters. The practice is nationally ranked as a Leader in Intellectual Property Litigation by BTI Litigation Outlook, and for Litigation – Intellectual Property by “Best Law Firms.” We are also ranked among the top 1% of Best Performing Law Firms Overall (Representing Defendants or Plaintiffs) by Patexia Patent Litigation Intelligence Report.

Our trial attorneys practice in the most active jurisdictions throughout the country, including the District of Delaware, the Eastern District of Texas, the Northern District of California, the Northern District of Illinois, the Southern District of New York, the International Trade Commission, the Patent Trial and Appeal Board and the Federal Circuit Court of Appeals. Collectively, we have decades of experience in patent litigation concerning hundreds of patent cases. Our experience includes work in every phase of patent litigation, from pre-suit analysis to initial pleadings, claim construction hearings, summary judgment motions, jury trials and appeals.

We have been involved in virtually every conceivable technological area, including representing pharmaceutical companies in the highly-specialized area of Hatch-Waxman Litigation. We collaborate with experienced patent prosecutors and scientists who have expertise in the applicable technology. We also represent companies before the Patent Trial and Appeal Board when necessary to challenge patents asserted against our clients.

Combining our patent law knowledge with proven trial and litigation experience, we effectively enforce and defend our clients’ rights in the courts and other dispute resolution forums. We serve as trusted advisors to businesses when analyzing potential claims, developing innovative solutions designed to avoid litigation where possible, and we move quickly to enforce their rights when necessary.

Our experience includes cases involving:

• Electronics
• Mechanical devices
• Medical devices
• Telecommunications devices
• Software
• Information technology
• Design patents
• Business methods
• Paragraph IV disputes under the Hatch-Waxman Act
• Chemical processes
• Animal health sciences
• Nutritional supplements
• Software and information technology
• Biosciences

No matter the industry or the technology, Polsinelli’s Patent Litigation group uses its knowledge and experience to provide innovative representation to our clients through the litigation process or alternative dispute resolution.

Recent rankings include recognition in the 2025 Patent Prosecution Intelligence Report where Polsinelli received the following rankings:

• #14 – Best Performing Law Firms in High-Technology
• #26 – Most Active Firms Overall in Biotechnology
• #32 – Most Active Firms Overall
• #33 – Best Performing Law Firms Overall
• #34 – Most Active Firms Overall in High-Technology
• #42 – Best Performing Law Firms in Biotechnology

In the 2024 Patent Litigation Intelligence Report, Polsinelli received the following rankings:

• #49 – Most Active Firms representing Defendants
• #56 – Best Performing Firms representing Plaintiffs
• #60 – Best Performing Firms Overall
• #63 – Best Performing Firms representing Defendants
• #74 – Most Active Firms Overall