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  • Professionals (104)
  • Capabilities (49)
  • Experience (49)
  • Insights & News (1,106)
  • Other Results (30)

Professionals 104 results

Grant E. Shillington
Grant E. Shillington
Associate
  • Chicago
Email
+1 312-558-3944
vCard

Associate

  • Chicago
Elizabeth Leavy
Elizabeth Leavy
Partner
  • Washington, DC, 
  • New York
Email
+1 202-282-5026
vCard

Partner

  • Washington, DC
  • New York
Lawrence “Larry” Block
Lawrence “Larry” Block
Partner
  • Washington, DC
Email
+1 202-282-5037
vCard

Partner

  • Washington, DC
View All Professionals

Capabilities 49 results

Industry

Government Contracts & Grants

Winston & Strawn’s Government Contracts & Grants Practice is a nationally recognized, highly regarded group of lawyers with deep experience in handling high-value, and often contentious, government contract disputes, bid protests, and claims across a broad spectrum of industries and issues. Our team also counsels clients on significant regulatory, compliance, and transactional matters—predominantly private equity and M&A deals....Read more

Practice Area

White Collar & Government Investigations

Ranked Tier 1 Nationally for “Criminal Defense: White Collar” by Best Law Firms®2025, and recognized for “Corporate Crime & Investigations: Highly Regarded – Nationwide” by Chambers USA in 2025, Winston’s White Collar & Government Investigations Practice assists individuals, companies, and organizations with government investigations and enforcement matters; related criminal and civil litigation; trials; appeals; congressional oversight; internal investigations; and compliance counseling and program development and enhancement. We are comprised of 80+ litigators, with more than a dozen former prosecutors from the SEC, Main Justice, and U.S. Attorneys’ Offices nationwide, including four former U.S. Attorneys, Regional Supervisors, and a former Assistant Director, Enforcement Division, SEC. We are known for our zealous advocacy, our unyielding commitment to our clients, and for protecting and defending clients’ interests with legal acumen that’s second to none....Read more

Practice Area

Government Program Fraud, False Claims Act & Qui Tam Litigation

Investigations and litigation involving alleged fraud against the government pose a significant and growing threat to organizations and individuals across all industries that engage directly or indirectly in business with federal, state, and/or local governments. The government makes aggressive use of its extensive criminal and civil investigatory powers to root out alleged fraud and abuse implicating government funds, including one of its most powerful civil enforcement tools—the federal False Claims Act (FCA)—and similar state false claims statutes....Read more

Experience 49 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 3, 2025

US Tiger Securities Announced IPO

Winston & Strawn LLP is serving as U.S. securities counsel to US Tiger Securities, Inc., a full-service broker/dealer, in connection with the $10,000,000 initial public offering of SMJ International Holdings Inc., a Singapore-based premium flooring specialist. The Company priced 2,500,000 Class A ordinary shares at US$4.00 per share. The Class A ordinary shares are expected to begin trading on the NYSE American under the ticker symbol “SMJF” on December 4, 2025....Read more

Experience

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October 1, 2025

AA Mission Acquisition Corp. II - Initial Public Offering

Winston & Strawn LLP represented AA Mission Acquisition Corp. II, a blank check company, in the recent closing of its $100 million Initial Public Offering (IPO). The offering consisted of 10,000,000 units priced at $10.00 per unit, before deducting underwriting discounts and estimated offering expenses. The units began trading on the New York Stock Exchange (NYSE) under the ticker symbol “YCY.U” on October 1, 2025....Read more
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Insights & News 1,106 results

Investigations, Enforcement, & Compliance Alerts

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February 24, 2026

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5 Min Read

The Mexico City Policy: Understanding the Latest Expansion of U.S. Foreign Aid Restrictions

On January 27, 2026, the Trump administration announced what it called “a historic expansion” of the Mexico City Policy, a longstanding U.S. rule restricting foreign aid funding related to abortion. The expansion extends the policy beyond abortion to include activities related to diversity, equity, and inclusion (DEI) and gender‑affirming care. Effective February 26, 2026, the change represents the most significant revision to the policy in its 40‑year history and could substantially reshape the distribution of U.S. foreign assistance worldwide.

Investigations, Enforcement, & Compliance Alerts

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February 18, 2026

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3 Min Read

Beyond the CMMC: New Cybersecurity Assessments for Government Contractors

The General Services Administration (GSA) recently announced changes to procedural guidance that may affect contractor eligibility for GSA contracts. GSA issued the IT Security Procedural Guide: Protecting Controlled Unclassified Information (CUI) in Nonfederal Systems and Organizations Process CIO-IT Security-21-112, which set out a cybersecurity framework for protecting CUI that is similar to the Cybersecurity Maturity Model Certification (CMMC) for DoD contracts. 

Competition Corner

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February 13, 2026

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2 Min Read

Federal Court Strikes Down New HSR Form

On February 12, 2026, the Eastern District of Texas overturned the Federal Trade Commission’s (FTC’s) new Hart-Scott-Rodino (HSR) Act notification form that has been in effect for the last year.

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Other Results 30 results

Site Content

What Is Uniform Grant Guidance?

In 2014, the Federal Office of Management and Budget (OMB) issued Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards to Non-Federal Entities, commonly known as the Uniform Grant Guidance. The Uniform Grant Guidance is a government-wide, authoritative set of rules and requirements for federal awards intended to guard against the risk of waste, fraud, and abuse while reducing the administrative burden for non-federal entities receiving federal awards....Read more

Law Glossary

What Is Post-Grant Review?

A post-grant review, or PGR, is a trial proceeding where the patentability of one or more claims in a patent is reviewed. The review process begins when a third party, who is not the patent owner, files a petition within nine months of a patent being granted or reissued. This filing challenges a patent’s claim or claims based upon a specific ground. The Patent Trial and Appeal Board (PTAB) is the branch of the U.S. Patent and Trademark Office that handles the trial proceeding. The post-grant review can be filed on any grounds that are available to dispute the validity of a patent claim, except for the following: failure to disclose the best mode requirement....Read more

Law Glossary

What Is the Standard for the FDA to Grant a Biosimilar License?

Granting a Biosimilar License...Read more
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