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Practice Area
Class Actions & Group Litigation
Winston has developed a consistent record of success handling class action cases in state and federal courts. The practice is anchored by seasoned class action lawyers, many of whom have been recognized by Chambers USA and other ranking organizations as being top practitioners in their field. Our clients rely on us to steer them through class action matters by drawing on the firm’s significant experience in resolving complex litigation using creative and aggressive arguments, across a broad range of class, collective, coordinated, and mass actions, as well multidistrict litigation. We also have succeeded at trial in several class actions—a rare occurrence.
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.
Practice Area
Winston’s financial services litigators advise financial services companies of every size and scope on litigation, dispute resolution, and regulatory matters in local, state, and federal jurisdictions. While we are proud to have advised many clients as to how avoid formal legal proceedings, should litigation arise, we bring to bear the full strength of our nationally renowned litigation and trial practice when it does arise.
Experience 147 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
Winston Represented Good Culture in its Majority Investment from L Catterton
Winston represented Good Culture, LLC, a clean-label cultured dairy brand credited with revolutionizing cottage cheese for the modern age, in its sale to L Catterton, a market-leading consumer-focused investment firm. This sale transaction officially closed Monday, February 2, 2026.
Experience
|December 22, 2025
Consortium Brand Partners Acquisition of California Pizza Kitchen
Represented Consortium Brand Partners, a New York-based private equity fund managing and investing in global brands and diverse teams across various consumer sections, in connection with its acquisition of California Pizza Kitchen.
Insights & News 3,523 results
Sponsorship
|March 22, 2026
Winston & Strawn Sponsors 38th Annual Roth Conference
Winston & Strawn is proud to sponsor the 38th Annual Roth Conference. This year, the program will feature one-on-one and small group meetings, analyst-selected fireside chats, industry keynotes, and panel discussions.
Capital Markets & Securities Law Watch
|March 10, 2026
|4 Min Read
As we discussed in our earlier post, the Holding Foreign Insiders Accountable Act (HFIAA), enacted on December 18, 2025, amended Section 16(a) of the Securities Exchange Act of 1934 (Exchange Act) to require directors and officers of foreign private issuers (FPIs) with a class of equity securities registered under Section 12 of the Exchange Act to file Section 16 beneficial ownership reports.
Non-Fungible Insights: Blockchain Decrypted
|March 10, 2026
|7 Min Read
The close of 2025 highlighted the continuing momentum for the digital asset industry, with regulatory developments accelerating rather than slowing.
Other Results 89 results
Law Glossary
A class action is a procedural device that allows one or more persons, usually plaintiffs (though federal and state procedural rules also authorize defendant classes) to file suit on behalf of a group of similarly situated persons. Federal law defines a class action as “any civil action filed under Rule 23 of the Federal Rules of Civil Procedure or similar State statute or rule of judicial procedure authorizing an action to be brought by 1 or more representative persons as a class action.” 28 U.S.C. § 1332(d)(1)(B), (d)(8).
Law Glossary
Consumer fraud is commonly defined as deceptive business practices that cause consumers to suffer financial or other losses. The victims believe they are participating in a legal and valid business transaction when they are actually being defrauded. Fraud against consumers is often related to false promises or inaccurate claims made to consumers, as well as practices that directly cheat consumers out of their money.
Law Glossary
What Is Consumer Targeting Law?
The protection of consumers’ privacy online is addressed within the field of consumer targeting law. The Federal Trade Commission’s Behavioral Advertising Principles recommend that websites disclose data collection policies, which are used to create consumer-targeted advertising. The FTC also advises that websites allow consumers to opt out of data collection. The FTC Act can be used to charge companies that do not adhere to their stated consumer privacy policies, do not protect consumer data, or do not provide adequate notifications of privacy policy changes. The law does not require all companies to provide privacy policies, though financial firms must disclose their information-sharing policies to their customers.