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Capabilities 88 results

Practice Area

Environmental Litigation & Enforcement

With today’s rapidly evolving rules of engagement, paired with the often contentious nature of environmental disputes, clients rely on Winston for our practical experience and substantive knowledge of the broad-ranging issues involved in environmental litigation, enforcement, and investigations....Read more

Practice Area

Environmental

Winston’s Environmental Practice brings decades of experience to our clients. Chaired by Eleni Kouimelis, former assistant regional counsel with USEPA Region 5, our Environmental Practice provides comprehensive services to clients around the globe....Read more

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

Experience 72 results

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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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....Read more

Experience

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November 7, 2025

Precision Aviation Group - Acquisition of Helicopter Engine Repair Overhaul Services

A team led by Austin Leach and Justin Levy represented Precision Aviation Group (PAG) in its acquisition of H.E.R.O.S., a premier Rolls-Royce M250/RR300 engine MRO provider, and its affiliate, Hye-Tech Manufacturing. ...Read more
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Insights & News 5,163 results

False Claims Act Playbook

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March 26, 2026

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7 Min Read

Chicago U.S. Attorney’s Office Named Lead Prosecutorial Partner on Trade Fraud Task Force, Emphasizing DOJ’s Increased Use of False Claims Act in Customs Fraud Cases

On February 24, 2026, the U.S. Department of Justice (DOJ) and the U.S. Department of Homeland Security (DHS) jointly announced that the U.S. Attorney’s Office in Chicago would be a lead prosecutorial partner on the recently launched interagency Trade Fraud Task Force. Originally launched on August 29, 2025, the Trade Fraud Task Force aims to aggressively pursue importers, purchasers, supply chain actors, and other entities engaged in customs fraud, including duty evasion, misclassification of goods, and smuggling of prohibited items. In this article, we evaluate DOJ’s continued commitment to designate substantial resources to its initiative to combat customs and trade fraud.

Seminar/CLE

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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....Read more

Article

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March 25, 2026

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9 Min Read

Navigating Venezuelan Oil and Gas Sanctions Rollbacks

This article was originally published in Law360. 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
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Other Results 127 results

Law Glossary

What Is the Environmental Protection Agency (EPA)?

The Environmental Protection Agency (EPA) is an executive agency of the United States under the direct authority of the President of the United States. The EPA’s mission is to protect people and the environment from significant health risks. The EPA is responsible for developing, maintaining, and enforcing environmental regulations and policies, including regulating the manufacturing, processing, distribution, and use of chemicals and other pollutants. EPA enforcement powers include fines, sanctions, and other measures....Read more

Site Content

What Is Environmental, Social, and Governance (ESG)?

Environmental, Social, and Governance (ESG) refers to non-financial factors that investors and stakeholders may consider to assess company operations and performance. These criteria have come to prominence as investors, particularly “socially responsible investors,” have used ESG to screen potential investments and as a measure of risks and opportunities that could impact a company’s ability to create long-term value....Read more

Law Glossary

What Is the National Cryptocurrency Enforcement Team?

The National Cryptocurrency Enforcement Team (NCET) is part of the DOJ’s Criminal Division. It is to identify, investigate, support, and pursue cases involving the criminal use of digital assets, with a particular focus on virtual currency exchanges, mixing and tumbling services, infrastructure providers, and other entities that are enabling the misuse of cryptocurrency and related technologies to commit or facilitate criminal activity....Read more
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