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  • Professionals (493)
  • Capabilities (87)
  • Experience (54)
  • Insights & News (3,598)
  • Other Results (98)

Professionals 493 results

Samantha Lerner
Samantha Lerner
Partner
  • Chicago
Email
+1 312-558-6463
vCard

Partner

  • Chicago
Ronald Y. Rothstein
Ronald Y. Rothstein
Partner
  • Chicago
Email
+1 312-558-7464
vCard

Partner

  • Chicago
Kathi Vidal
Kathi Vidal
Partner
  • Washington, DC, 
  • Silicon Valley
Email
+1 (202) 282-5099
vCard

Partner

  • Washington, DC
  • Silicon Valley
View All Professionals

Capabilities 87 results

Practice Area

Trademark Litigation, Prosecution & Brand Protection

Practice Area

Insurance Litigation

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....Read more

Practice Area

Advertising Litigation

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....Read more

Experience 54 results

Experience

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April 6, 2026

MLBPI’s Licensing Fight Ends in Victory and Settlement with DraftKings

Winston is representing MLB Players Inc. (MLBPI), which serves as the exclusive group licensing representative for all MLB (major league baseball) players. MLBPI sued several online sportsbook and mobile-betting platforms, including DraftKings, over their use of hundreds of MLB player images and likenesses without MLBPI’s consent....Read more

Experience

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January 27, 2026

PayPal Successfully Invalidates Asserted Claims of Secure Payment Transaction Patent Under 35 U.S.C. § 101

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....Read more

Experience

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January 15, 2026

Winston Advises Citigroup, Goldman Sachs & Co. LLC, and Morgan Stanley in Constellation Energy Generation LLC's Exchange Offer

Winston & Strawn LLP represented Citigroup, Goldman Sachs & Co. LLC, and Morgan Stanley in their role as dealer-managers to Constellation Energy Generation, LLC, a publicly traded power producer and the nation's leading producer of clean, carbon-free energy, in connection with an exchange offer and consent solicitation for any and all of Calpine LLC’s (formerly, Calpine Corporation) outstanding 4.625% Senior Unsecured Notes due 2029, 5.000% Senior Unsecured Notes due 2031, and 3.750% Senior Secured Notes due 2031, in exchange for 4.625% Senior Unsecured Notes due 2029, 5.000% Senior Unsecured Notes due 2031, and 3.750% Senior Unsecured Notes due 2031....Read more
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Insights & News 3,598 results

False Claims Act Playbook

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May 14, 2026

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3 Min Read

DOJ Launches FOCUS Initiative, Signaling Increasingly Data-Driven Era of FCA Enforcement

On April 30, 2026, the U.S. Department of Justice’s Civil Division announced a new initiative called the Fraud Oversight through Careful Use of Statistics (“FOCUS”) initiative, aimed at strengthening DOJ’s engagement with so‑called “data miner” whistleblowers who bring False Claims Act (FCA) qui tam actions based on publicly available government data, rather than insider knowledge.

In the Media

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May 13, 2026

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1 Min Read

Alexander Ott Discusses ITC Litigation Funding Disclosure Proposal with Law360

Winston & Strawn partner Alexander Ott was quoted in a Law360 article discussing the U.S. International Trade Commission (ITC)’s proposed rule requiring disclosure of litigation funding in Section 337 intellectual property investigations. The proposed rule would require parties appearing before the ITC to disclose litigation funding arrangements and entities with financial interests or authority over litigation and settlement decisions. According to the article, the ITC stated that the information could help identify conflicts of interest and provide greater clarity in Section 337 investigations....Read more

Article

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May 8, 2026

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4 Min Read

IP’s Real Legal Frontier With AI Is Everything Before the Output

This article was originally published in Bloomberg Law. Any opinions in this article are not those of Winston & Strawn or its clients. The opinions in this article are the authors’ opinions only....Read more
View All Insights & News

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....Read more

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....Read more

Site Content

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