About Marcelo Meirelles Leao de Barros

Marcelo Barros litigates complex intellectual property and emerging technology disputes across federal and state courts. He handles high-stakes matters involving trade secrets and software in the healthcare and AI sectors, trademark and unfair competition claims in SaaS and insurance, and cryptocurrency disputes, including civil forfeiture actions involving hundreds of millions of dollars and cross-border asset recovery. Marcelo also litigates cases implicating the CFAA, antitrust law, and defamation. Marcelo has extensive experience in patent litigation, representing clients in various federal jurisdictions and and PTAB proceedings spanning industries in electronics, automotive, pharmaceuticals, and medical devices. Marcelo also regularly advises clients on a wide variety of internet law issues.

His technical background in biomedical engineering and bioengineering provides him versatility to handle a wide range of technical fields, ranging from life sciences and medical device companies, to electronics and computer technology sectors.

Marcelo brings deep research experience to his legal practice. His scientific background includes developing FRET-based biosensors to investigate proteins involved in heart failure during his graduate studies at Sanford Burnham Prebys Medical Discovery Institute. As a systems integration engineer for a genomic sequencing company, he designed, analyzed, and validated improvements to gene sequencing platforms. This interdisciplinary experience involved collaboration with chemists, molecular biologists, biochemists, bioinformaticians, and hardware engineers in fields such as optics and imaging. His laboratory background includes proficiency in various wet lab techniques and molecular biology methods.

Concentrations

Technology-Driven Commercial Disputes – CFAA, antitrust, defamation, tortious interference, and contract dispute claims involving complex software, data systems, SaaS, and video games.

Intellectual Property & Emerging Tech Litigation – Trade secret, software, and AI disputes.

Cryptocurrency & Asset Recovery – Civil forfeiture actions to recover stolen crypto assets.

Patent Litigation

– Patent litigation in federal courts as well as the PTAB.

 

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Services

Areas of Law

  • Intellectual Property 1
    • Trade Secrets
  • Other 4
    • Intellectual Property and Technology
    • Intellectual Property Litigation
    • Life Sciences and Medical Technology
    • Internet, Domain Name, E-Commerce and Social Media

Practice Details

  • Languages
    Portuguese
    Spanish
  • Firm Information
    Position
    Associate
    Firm Name
    Greenberg Traurig, LLP
  • Representative Cases & Transactions
    Cases
    Experience: Representative Matters: Representing a large health technology SaaS platform with crossclaims for tortious interference, Computer Fraud
    Abuse Act,
    related claims.
    Representing a residential technology company against competitor involving antitrust, false advertising,
    defamation claims.
    Representing founder of incubator behind multiple top billion dollar+ AI in trademark
    defamation dispute.
    Representing innovative AI
    software companies in offensive
    defensive trade secrets
    business libel matters.
    Assisted on a defense against unfounded business-commercial claims in a prominent video-game industry dispute involving video-game contracts
    business partnerships
    matter resolved by agreement.
    Assisted in achieving successful summary judgment blocking enforcement of Proposition 65 targeting a chemical substance for which there was reasonable scientific controversy as to whether it is carcinogenic.
    Represented clients at various stages of patent litigation
    PTAB proceedings, covering technologies in electronics, pharmaceuticals, medical devices,
    automotive industries.
    The above representations were h
    led by Mr. Barros prior to his joining Greenberg Traurig, LLP.
    Previous Experience: Research Associate II - System Integrator, Illumina, 2015-2018
    Research Assistant, Sanford-Burnham Medical Research Institute, 2014-2015
  • Additional Links

Experience

  • Bar Admission & Memberships
    Admissions
    2021, California
    Memberships

    Member, Hispanic National Bar Association, 2021-Present

    Member, American Bar Association (ABA), 2021-Present

    Member, Bar Association of San Francisco (BASF), 2025-Present
  • Education & Certifications
    Law School
    New York University
    Class of 2021
    J.D.
    Other Education
    University of California at San Diego
    Class of 2014
    M.S.
    Biomedical Engineering

    University of Texas
    Class of 2013
    B.S.
    Biomedical Engineering
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Attorneys FAQs

  • Does this attorney speak any other languages?
    Marcelo Meirelles Leao de Barros speaks Portuguese and Spanish.
  • How many attorneys are in this law firm?
    Greenberg Traurig, LLP has 2750 attorneys at this location.
  • What law school did this attorney attend?
    Marcelo Meirelles Leao de Barros attended New York University.
  • What year was this attorney's law firm established?
    Greenberg Traurig, LLP was established in 1967.