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Professionals 609 results
Capabilities 89 results
Practice Area
Winston’s Intellectual Property (IP) Practice is one of the most active and highly regarded in the United States per Chambers USA, Benchmark Litigation US, and Best Law Firms®, among other ranking organizations. Our team features some of the country’s best IP lawyers, attorneys with the technical abilities to litigate and try highly complex IP disputes, and technical lawyers who provide critical advisory services.
Practice Area
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
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.
Experience 128 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
|January 8, 2026
$2.75 Billion Constellation Energy Generation, LLC Public Offering of Senior Notes
Winston served as underwriters' counsel to BofA Securities, Citigroup, Goldman Sachs & Co. LLC, Morgan Stanley and Scotiabank, as joint book-running managers, in connection with the registered public offering of $2.75 billion of Senior Notes by Constellation Energy Generation, LLC comprised of (i) $300 million of its Floating Rate Senior Notes due 2028; (ii) $900 million of its 3.900% Senior Notes due 2028, (ii) $750 million of its 4.400% Senior Notes due 2031, and (iv) $800 million of its 5.875% Senior Notes due 2066.
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, Jeanifer Parsigian, and Danielle Williams were recognized by American Lawyer with its top “Litigator of the Week” honors on December 19, 2025, for this historic settlement.
Insights & News 4,470 results
Global Trade & Foreign Policy Insights
|February 23, 2026
|10+ Min Read
Cari’s Legal Exchange: Navigating Evolving ICE Enforcement
In this episode of Cari’s Legal Exchange, Cari speaks with Damien Diggs, who shares practical insights on evolving ICE workplace enforcement, including how employers can prepare for inspections or raids, respond during enforcement actions, and what obligations and best practices apply after an inspection.
Recognitions
|February 23, 2026
|Less Than 1 Min Read
Winston & Strawn lawyers were named on the 2026 Lawdragon 500 Leading Global Entertainment, Sports & Media Lawyers list. This directory highlights the individuals and organizations at the heart of the entertainment, sports, and media industries globally.
In the Media
|February 20, 2026
|2 Min Read
Patrick Valenti Joins Winston & Strawn in Chicago
Winston & Strawn recently announced that Patrick Valenti has joined the firm’s Chicago office as a partner in the Transactions Department and a member of the Private Investment Funds Practice. Patrick advises private equity sponsors on the formation, fundraising, and operation of private investment funds, with a focus on sponsors raising middle-market private equity funds from $250 million to $3 billion.
Other Results 114 results
Site Content
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.