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  1. Professionals

Thanh D. Nguyen

he/him/his

Associate

Dallas

+1 214-296-9845

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  • Overview
  • Experience
  • Credentials
  • Insights & News

Thanh is a litigation associate in Winston’s Dallas office, where his practice spans a broad range of trial and appellate matters.

Before joining the firm, Thanh clerked for three federal judges—the Honorable U.S. Magistrate Judge Kimberly C. Priest Johnson of the Eastern District of Texas (Ret.), the Honorable U.S. District Judge Marina Garcia Marmolejo of the Southern District of Texas, and the Honorable U.S. Circuit Judge Beth Robinson of the U.S. Court of Appeals for the Second Circuit. During his tenure with the judiciary, Thanh supported the judges with presiding over 1,200 cases and 23 trials. This high-volume caseload allowed Thanh to develop deep substantive knowledge in a wide range of civil and criminal matters, including trademark infringement, antitrust, employment discrimination, healthcare fraud, and federal sentencing. 

At Winston, Thanh's work is similarly diverse. He has litigated disputes involving international commercial contracts, trade secrets, patent infringement, consumer protection laws, healthcare privacy, free speech rights, the Equal Protection Clause, and the Administrative Procedure Act. His breadth of experience makes him well-equipped to handle any litigation matter. 

Key Matters

Appellate Experience:
  • Secured a writ of mandamus from Texas’s Fifteenth Court of Appeals in a dispute over the health privacy rights of minors
  • Represented a software company in a mandamus proceeding before the Federal Circuit, which led to a precedential opinion that clarified venue law in patent disputes
  • Represented aspiring and former military service members in an equal protection case before the Fourth Circuit
Trial-Level Experience:
  • Managed a confidential commercial arbitration involving US$19M in damages for New York claims of breach of contract and breach of the implied covenant of good faith and fair dealing
  • Defended a biotechnology company against claims of tortious interference with contractual rights, misappropriation of trade secrets, and breach of fiduciary duty
  • Defended a renewable energy company in a US$55M breach of contract suit, which the Winston team resolved with a favorable settlement
  • Defended a Fortune 20 company against a nationwide class action involving 62 claims arising under the laws of 15 jurisdictions
  • Represented a cloud storage solutions company in a suit asserting claims of trade secret misappropriation and breach of restrictive covenants
  • Represented a holding company in a complex shareholder dispute involving over 40 portfolio companies, which concluded in a favorable pre-suit settlement
  • Defending multiple food and beverage companies against nationwide class action suits asserting false advertising and mislabeling claims
  • Representing a high school student in an equal protection and First Amendment suit against a school district

  • Litigators of the Week, ALM Global – Law.com (Oct. 24, 2025)
  • Best Brief, 50th Leahy Moot Court Competition (2019)

Capabilities

Litigation/Trials
Appellate & Critical Motions
Class Actions & Group Litigation
Commercial Litigation & Disputes
Labor & Employment
Trade Secrets, Non Competes & Restrictive Covenants

Key Matters

Appellate Experience:
  • Secured a writ of mandamus from Texas’s Fifteenth Court of Appeals in a dispute over the health privacy rights of minors
  • Represented a software company in a mandamus proceeding before the Federal Circuit, which led to a precedential opinion that clarified venue law in patent disputes
  • Represented aspiring and former military service members in an equal protection case before the Fourth Circuit
Trial-Level Experience:
  • Managed a confidential commercial arbitration involving US$19M in damages for New York claims of breach of contract and breach of the implied covenant of good faith and fair dealing
  • Defended a biotechnology company against claims of tortious interference with contractual rights, misappropriation of trade secrets, and breach of fiduciary duty
  • Defended a renewable energy company in a US$55M breach of contract suit, which the Winston team resolved with a favorable settlement
  • Defended a Fortune 20 company against a nationwide class action involving 62 claims arising under the laws of 15 jurisdictions
  • Represented a cloud storage solutions company in a suit asserting claims of trade secret misappropriation and breach of restrictive covenants
  • Represented a holding company in a complex shareholder dispute involving over 40 portfolio companies, which concluded in a favorable pre-suit settlement
  • Defending multiple food and beverage companies against nationwide class action suits asserting false advertising and mislabeling claims
  • Representing a high school student in an equal protection and First Amendment suit against a school district

Credentials

Education

Thanh earned his J.D. from Georgetown University Law Center. There, he served as the Managing Editor of the Georgetown Journal of Law & Modern Critical Race Perspectives, competed on the moot court team, and assisted first-year students as a legal writing fellow. He also participated in the law school's Civil Litigation Clinic. Thanh received his B.A. and M.A. from Stanford University.

    Admissions
    • District of Columbia
    • Texas
    • New York
    Clerkships
    • USCA - Second Circuit for the Honorable Beth Robinson
    • USDC - Eastern District of TX for the Honorable Kimberly C. Priest Johnson
    • USDC - Southern District of TX for the Honorable Marina Garcia Marmolejo
    Languages
    • Vietnamese

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    View All Insights & News

    Capabilities

    Litigation/Trials
    Appellate & Critical Motions
    Class Actions & Group Litigation
    Commercial Litigation & Disputes
    Labor & Employment
    Trade Secrets, Non Competes & Restrictive Covenants
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