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For decades, Winston has represented a broad array of clients in the insurance industry, including some of the world’s largest and best-known insurers. Our prowess in and understanding of the insurance industry encompasses not only its products, practices, and services, but also the increasing challenges posed by a world increasingly characterized by a fast-evolving technological landscape as well as financial, political, and environmental instability. Accordingly, Winston’s lawyers are among the most sought-after in the industry—not only by companies currently facing high-stakes litigations and investigations, but by those looking to take preventive action now in order to mitigate and manage their risk in the future.
Practice Area
Brands across key sectors turn to Winston litigators to defend their reputations in advertising class actions, competitor disputes, and investigations. With litigators based in the U.S.’s busiest jurisdictions—including courts in California, Florida, Illinois, New York, and Texas—we have deep experience and prowess in handling some of the most high-profile and business-essential advertising cases in recent history. These disputes have involved false advertising; unfair competition, unfair business practices, and unjust enrichment; copyright, trade name, and service mark infringement; consumer-protection claims; and violations of the Lanham Act.
Experience 53 results
Experience
|January 27, 2026
Winston & Strawn secured a decisive victory for PayPal in an intellectual property dispute brought by Irish non-practicing entity Internet Payment Patents LTD (IPPL). Magistrate Judge Susan van Keulen of the Northern District of California entered final judgment in PayPal’s favor, finding all asserted patent claims ineligible under 35 U.S.C. § 101 and granting PayPal’s motion to dismiss without leave to amend.
Experience
|December 11, 2025
Winston Takes the Checkered Flag After “Massive Win” Settlement
Winston squared off in the W.D.N.C. against lawyers for NASCAR in an antitrust lawsuit brought on behalf of racing teams Front Row Motorsports Inc. and 23X1 Racing LLC—the team co-owned by Michael Jordan and driver Denny Hamlin—alleging monopolization of the market for premier stock car racing teams. On December 11, 2025, nine days into trial and the morning after the plaintiffs rested their case, the parties jointly announced a settlement. Jeffrey Kessler and Jeanifer Parsigian were recognized by American Lawyer with its top “Litigator of the Week” honors on December 19, 2025, for this historic settlement.
Experience
|September 8, 2025
Winston represents a class of professional swimmers alleging World Aquatics (WA) violated antitrust laws by blocking their participation in the competing International Swimming League. After WA won summary judgment, Winston successfully appealed, arguing the court applied improper antitrust standards and wrongly denied certification of a damages class. In September 2024, the Ninth Circuit reversed both rulings, reviving all claims and issuing a landmark ruling on the possible application of the per se rule or quick look review to sports-associations rules. Am Law awarded Winston “Litigator of the Week” Runner-Up recognition for the win. In November 2024, the Ninth Circuit denied rehearing. In April 2025, the district court certified a damages class.
Insights & News 3,673 results
Seminar/CLE
|March 25, 2026
Sanctions, Arbitration, and Cross-Border Enforcement: Complex Intersections in Practice
We are pleased to host an exclusive panel session during Paris Arbitration Week, exploring the complex intersections of sanctions regimes, international arbitration, and cross-border enforcement. This program combines real-world case insights with comparative perspectives to help practitioners navigate today’s challenging global legal landscape.
In the Media
|March 6, 2026
|2 Min Read
Matthew Huppert Joins Winston & Strawn in Washington, D.C.
Winston & Strawn recently announced that Matthew Huppert has joined the firm’s Washington, D.C. office as a partner in the Litigation Department and a member of the Antitrust & Competition Practice. Matt, who comes to the firm from the U.S. Department of Justice’s Antitrust Division, is a first-chair trial lawyer who brings extensive litigation experience, a deep knowledge of antitrust, and a fresh enforcement perspective, further strengthening the firm’s market leadership in litigation, antitrust, and government investigations.
In the Media
|March 6, 2026
|1 Min Read
Amelia Garza-Mattia Discusses VPPA Consumer Definition Case with Law360
Winston & Strawn's Amelia Garza-Mattia, senior associate in the firm's Global Privacy & Data Security Practice, was quoted in a Law360 article discussing what to expect in oral arguments for the Salazar v. Paramount Global U.S. Supreme Court case. The case asks the justices to consider what criteria consumers need to meet in order to sue under the federal Video Privacy Protection Act (VPPA), a law enacted in 1988 that prohibits the unauthorized disclosure of certain personal information belonging to “consumers” that rent, purchase, or subscribe to “goods and services from a video tape service provider,” and whether that statute applies to a consumer who doesn’t directly subscribe to audiovisual goods or services.
Other Results 98 results
Site Content
What Is Trademark Infringement?
Trademark infringement is defined as the unauthorized use of a trademark or service mark. This use can be in connection with goods or services and may lead to confusion, deception, or a misunderstanding about the actual company a product or service came from. Trademark owners can take legal action if they believe their marks are being infringed. If infringement of a trademark is proven, a court order can prevent a defendant from using the mark, and the owner may be awarded monetary relief.
Law Glossary
What Is Advertising Litigation?
Advertising litigation is defined as the legal area that covers false or deceptive advertising cases. Lawsuits may be brought by government agencies or corporate competitors based on the Lanham Act—a law that specifically deals with false advertising. The Act outlines how an advertisement can be deemed false. The Federal Trade Commission (FTC) has the ability to file lawsuits to halt deceptive advertising claims. The U.S. Food and Drug Administration may also pursue advertising litigation against violators of government regulations. Companies may be called on to substantiate their advertising claims, whether these are made in print or online.