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  • Professionals (342)
  • Capabilities (76)
  • Experience (94)
  • Insights & News (2,763)
  • Other Results (40)

Professionals 342 results

William Sunkel
William Sunkel
Senior Attorney
  • New York
Email
+1 212-294-2635
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Senior Attorney

  • New York
William O’Neil
William O’Neil
Partner
  • Chicago
Email
+1 312-558-5308
vCard

Partner

  • Chicago
Bill Green
Bill Green
Associate
  • Chicago
Email
+1 312-558-3478
vCard

Associate

  • Chicago
View All Professionals

Capabilities 76 results

Practice Area

Privacy: Regulated Personal Information (RPI)

Winston’s Regulated Personal Information (RPI) Practice offers seamlessly integrated counseling and litigation services to companies looking for practical and solution-oriented assistance navigating the compliance, regulatory, and private class action enforcement risks presented by the emerging patchwork of complex (and often conflicting) privacy laws in the United States and beyond....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

Practice Area

Financial Innovation & Regulation

Winston’s Financial Innovation & Regulation attorneys routinely counsel financial services, digital assets, and other clients on complex banking, crypto, FinTech, consumer financial, and securities matters. Many of our team members previously held positions as in-house counsel at global financial institutions and served in positions at government agencies, which gives us considerable experience in helping our clients obtain innovative, effective, and efficient solutions....Read more

Experience 94 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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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....Read more

Experience

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December 12, 2025

Banesco USA acquires BayFirst Financial’s SBA loan division business

Winston represented Banesco USA in its acquisition of BayFirst Financial’s SBA lending business. Through the acquisition of the SBA lending business and a portfolio of SBA 7(a) loans, Banesco USA gains the infrastructure, expertise, and enhanced capabilities to deliver SBA lending on a national scale. It marks a significant step in the bank’s growth strategy, enabling it to expand its lending nationally, enhance the ability to better serve small and mid-sized businesses, and diversify its offerings. Banesco USA is an independent Florida state-chartered bank and is part of the Banesco International financial brand of banks operating in multiple countries. Enrique Martin, partner in Winston’s M&A Practice group, led the transaction for Banesco USA and was assisted by counsel Jennifer Olivestone and associate Caitlin Calvo. ...Read more
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Insights & News 2,763 results

False Claims Act Playbook

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March 23, 2026

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10+ Min Read

Future FCA Enforcement Expectations in Light of Record-Breaking FY 2025 Recoveries and Administration Priorities

The annual False Claims Act (FCA) recovery statistics issued by the U.S. Department of Justice (DOJ) for Fiscal Year 2025 represent the highest single-year recovery in FCA history, underscoring that the FCA remains one of the government’s most effective tools for combating frauds involving federal funds. Winston attorneys outline expectations for FCA enforcement in 2026 and beyond based on an analysis of FY 2025 FCA activity and the priorities and goals of the current administration.

Sponsorship

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March 23, 2026

Winston & Strawn Sponsors Healthcare Business International (HBI) 2026

We are proud to be an Elite Sponsor of the 2026 Healthcare Business International Conference in Paris. This must-attend event brings together leading decision-makers from the global for-profit healthcare sector to explore new business opportunities, drive growth, and shape the future of healthcare....Read more

Sponsorship

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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. ...Read more
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Other Results 40 results

Site Content

What Is GIPA?

The Illinois Genetic Information Privacy Act (GIPA), enacted in 1998, prohibits employers and their agents from conditioning employment on genetic data, or from using genetic data in discriminatory ways. The statute also prohibits insurers from seeking genetic information to use in connection with accident or health insurance policies....Read more

Location

Miami

Winston & Strawn’s Miami office opened in 2022 and represents the firm’s largest expansion in several years. Located in the heart of the city’s Financial District, the office launched with a strong team of transactional and litigation partners from prestigious law firms operating in South Florida. Our Miami office leverages the area’s status as a critical nexus point for banking and international trade with the United States, Europe, Latin America, and other parts of the world. Our attorneys have the cultural fluency and local knowledge necessary to work seamlessly with international clients, particularly those with ties to Latin America....Read more

Site Content

What Is Generative AI?

Generative AI tools can create new content, such as text, computer code, images, audio, sound, and video, in response to a user’s prompt, often in the form of a short written description of the desired output. Generative AI tools are based on machine learning, trained using enormous amounts of data.[1] Generative AI tools are built on a system of inputs and outputs. First, the tool goes through a machine learning period whereby it is trained to generate predictive models and creative outputs through a large data set, often varied and diverse but tailored to the goal of the tool (i.e., customer service, generating scientific or marketing models, etc.). For in-house tools, this can be done with the company’s own data; for larger tools such as ChatGPT, this is done with the creator’s data set.[2] Once the tool has been trained, the individual user “inputs” a short prompt for the tool to synthesize and produce an “output.” Inputs are often retained on the servers controlled by the company that supports the tool, for monitoring of the tool’s performance and, in some cases, continued learning. The “outputs” are created by combining the machine learning during the training period with the inputs to produce an output.[3]...Read more
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