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Our Patent Litigation Practice is one of the country’s most active and highly regarded. Our seasoned patent litigators bring extensive courtroom experience to every matter we handle. According to Lex Machina, we are among the top three national patent defense firms in the country for number of appearances and cases filed, and we also were the top national defense firm for number of patent trials in the last five years (2018–2022).
Practice Area
Trial skills matter—even in a world where few disputes ever see the inside of a courtroom. Winston has built a reputation as a trial lawyers’ firm, featuring seasoned litigators who leverage extensive courtroom experience to meet our clients’ business and legal objectives. Our long history of taking cases to trial—and winning—provides our clients with tremendous settlement leverage with their adversaries, as well as a substantial likelihood of a favorable resolution if, and when, they go to trial.
Practice Area
Experience 228 results
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.
Experience
|August 18, 2025
Winston Represented Amphenol in Definitive Agreement to Acquire Trexon
Winston represented Amphenol Corporation (NYSE: APH), one of the world’s largest designers, manufacturers, and marketers of electrical, electronic, and fiber optic connectors and systems, as well as coaxial and high-speed specialty cables, in its definitive agreement to acquire Trexon, a leading provider of high-reliability interconnect and cable assemblies primarily serving the defense market. The acquisition is valued at approximately US$1B, subject to customary post-closing adjustments. Amphenol will finance the transaction with cash on hand and expects to close in the fourth quarter of 2025.
Experience
|July 30, 2025
Represent Norman W. Fries, Inc. d/b/a Claxton Poultry Farms in a series of 15+ antitrust class actions consolidated in the Northern District of Illinois and brought by plaintiffs who allege that Claxton and the nation’s other largest poultry producers conspired to fix the price of broiler chickens in a scheme from 2008 to 2016 that raised the price for broiler chickens by artificially reducing supply.
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Sponsorship
|November 20, 2025
Winston & Strawn Sponsors 2025 Smart Business Dealmakers South Florida M&A Conference
Winston & Strawn is proud to sponsor the upcoming Smart Business Dealmakers South Florida M&A Conference. The conference brings together hundreds of local dealmakers, including middle-market CEOs, top investors and lenders, and leading M&A advisers.
Sponsorship
|November 12, 2025
Winston & Strawn Sponsors 2025 Smart Business Dealmakers Houston M&A Conference
Winston & Strawn is proud to sponsor the upcoming Smart Business Dealmakers Houston M&A Conference. The conference will discuss topics ranging from raising capital to alternative asset investing, covering the breadth of the M&A landscape.
Sponsorship
|October 22, 2025
Winston & Strawn Sponsors the 2025 Eastern District of Texas Bench Bar Conference
Winston & Strawn is a proud sponsor of the 2025 Eastern District of Texas Bench Bar Conference, one of the nation’s top annual bench bar conferences. The conference brings together judges, lawyers, topic speakers, guests, and other participants from across the world to discuss a broad range of cutting-edge legal topics.
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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.