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  • Professionals (595)
  • Capabilities (86)
  • Experience (68)
  • Insights & News (5,401)
  • Other Results (131)

Professionals 595 results

Jonathan D. Brightbill
Jonathan D. Brightbill
Partner
  • Washington, DC
Email
+1 202-282-5855
vCard

Partner

  • Washington, DC
Eleni Kouimelis
Eleni Kouimelis
Partner
  • Chicago
Email
+1 312-558-5133
vCard

Partner

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

Partner

  • Chicago
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Capabilities 86 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 68 results

Experience

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May 9, 2025

An Am Law LOTW Shout Out-Worthy Gold Medal Victory In $Jenner

Winston, led by partners Jeffrey Steinfeld, John Schreiber, and George Mastoris, secured full dismissal of a high-profile securities class action involving hundred of millions of dollars in $Jenner memecoin trades. Plaintiffs alleged securities fraud under federal and California laws. The team was recognized in Am Law’s Litigator of the Week column for the win....Read more

Experience

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April 30, 2025

Federal Circuit Backs PayPal

In December 2022, Winston convinced Judge Albright of the W.D. Tex. to reverse his tentative construction and invalidate four patents based on means-plus-function indefiniteness at claim construction in the district court. Winston also persuaded Judge Albright to deny Fintiv’s motion for reconsideration the next month. Fintiv appealed to the Federal Circuit, which affirmed the district court in a precedential opinion in April 2025. Winston overcame a significant amount of sleight of hand from Fintiv, which continually shifted the purported structure of the “payment handler” term through claim construction, its motion for reconsideration, and appellate briefs, muddying the record. Ultimately the opinion clearly distinguished the factual record from that in Dyfan v. Target, curbing patentees abilities to argue that all code or applications are a “class of structures” and not indefinite under 112(f). The Federal Circuit affirmed four of the five patents Winston invalidated for PayPal, effectively foreclosing Fintiv’s ability to revive these patents for assertion. Winston also invalidated the fifth patent at the PTAB; Fintiv’s appeal of that Final Written Decision is pending....Read more

Experience

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March 31, 2025

ESOP Class Claims Flop

After an eleven-day bench trial in January 2023, the N.D. Ill. delivered a full defense verdict in March 2025 in an ERISA class action brought by participants in Segerdahl Corporation’s ESOP. The court rejected the class claims against Segerdahl, its ESOP trustee GreatBanc Trust Company, and various individual defendants including board members Bob Cronin, Rod Goldstein, and Peter Mason, alleging that Segerdahl could have sold for a significantly higher price, which would have increased post-sale distributions to the ESOP participants. Winston earned an Am Law Litigator of the Week Shout Out for this win....Read more
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Insights & News 5,401 results

Seminar/CLE

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September 18, 2025

Winston Hosts New York Financial Services Symposium

Winston’s Financial Services Industry Group is pleased to host our inaugural Financial Services Symposium in our New York office on Thursday, September 18, 2025. This event will include a half-day of programming led by top industry thought leaders. Below you will find details about each panel....Read more

Client Alert

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September 12, 2025

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6 Min Read

Debanking Developments: OCC Bulletins Clarify Expectations, but Key Questions Remain

In this alert, Winston’s Financial Services Industry Group examines recent developments in debanking, focusing on two new OCC bulletins that clarify regulatory expectations. While these bulletins provide new insight into how the OCC is addressing debanking under the current administration, they also leave several important questions unanswered.

The OCC’s first bulletin addresses how politicized or unlawful debanking will factor into licensing applications and Community Reinvestment Act evaluations, emphasizing the importance of fair access and treatment. The second bulletin reminds banks of their obligations under the Right to Financial Privacy Act, particularly in light of recent congressional scrutiny, and underscores the need to protect customer financial records unless disclosure is legally required.

What does this mean for you? 

Recognitions

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September 11, 2025

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Less Than 1 Min Read

Kathi Vidal Named to Washingtonian 2025 Tech Titan List

Winston & Strawn partner Kathi Vidal has been named to the Washingtonian’s 2025 Tech Titans list, which honors the most influential figures driving innovation in the Washington, D.C. tech sector. The list features entrepreneurs, government leaders, cybersecurity experts, venture capitalists, and others shaping the future of tech in the region. Kathi was recognized in the “Policy People” category, which highlights advocates, lobbyists, and nonprofit leaders making a meaningful impact in tech policy. The Washingtonian praised Kathi as one of the top intellectual property and patent attorneys in the country....Read more
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Other Results 131 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

Site Content

Energy & Environmental Policies

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