Biography

John B. Greenberg represents corporate clients in commercial transactions and litigation involving intellectual property, advertising, information technology, antitrust, and real estate matters.

John regularly advises clients on matters pertaining to the protection of trademarks, copyrights, and trade secrets; advertising; defamation; online privacy and other Internet-related matters; publicity rights; other technology software development and licensing; and antitrust. He has also served as lead counsel in numerous intellectual property, advertising, real estate, and other business disputes.

John's peers have selected him for inclusion in The Best Lawyers in America® 2016-2022 and is AV® Preeminent™ Peer Review Rated by Martindale-Hubbell.

Representative Cases

  • Successful defense of a false advertising action brought to shut down a trade organization's "board certification program."
  • Successful prosecution of an injunction action brought by a national software company to stop a third party from using and licensing a knockoff of its copyrighted software.
  • Successful prosecution of an injunction action brought by a national restaurant franchisor to preclude a terminated franchisee from continuing to use its trademarks.
  • Successful prosecution of a false advertising action that sought to prevent an online publication business from continuing to conduct a promotional campaign.
  • Successful defense of a trademark infringement action that sought to block a major licorice manufacturer from continuing to market its only product.
  • Successful defense of an action by a licensee of a major collegiate organization that alleged the organization had wrongfully failed to stop a competitor of the licensee from using the organization's trademarks.
  • Successful defense of a trade secret misappropriation action that alleged a real estate developer had constructed part of a commercial mall using the plaintiff's proprietary designs.
  • Successful defense of a false advertising action that sought to block the nationwide launch of a paint product into the marketplace.

Practice Areas

Education

  • Washington University in St. Louis School of Law (J.D.)
    • Washington University Law Quarterly, member
  • Northwestern University (B.J.)
    • Journalism

Legal Background

  • The Stolar Partnership LLC

Professional Affiliations

  • American Bar Association, Antitrust, Intellectual Property, and Litigation Committees
  • Chair, Advertising Law Committee, Bar Association of Metropolitan St. Louis
  • Illinois State Bar Association
  • Member, Regional Disciplinary Committee (appointed by Missouri Supreme Court)

Admissions

  • Missouri Bar
  • Illinois Bar

Charitable & Civic Activities

  • Board member, Jewish Federation of St. Louis
  • Advisory Board member and past President, St. Louis Jewish Light
  • Past President, Central Agency for Jewish Education
Firm Highlights
Client Alert

First-Issued Interim Final Rule Gives Guidance on No Surprises Act

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Client Alert

Property Owners Can Push the Issue Under Illinois Mechanic’s Lien Law

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News

Michael R. Thiessen Recognized as Pro Bono Spotlight by KCMBF for August

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Brian P. Pezza Quoted in SHRM Articles on Employee Vaccination Status Disclosure and Employer Vaccination Policies

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News

Neal F. Perryman Named to Missouri’s POWER List in Employment Law by Missouri Lawyers Media

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Client Alert

OSHA’s New Guidance Regarding Indoor Mask Wearing, COVID-19 Vaccination Mandates, Regular Testing of Unvaccinated Workers, and More

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Diversity & Inclusion

Golf Foundation of Missouri Awards First Larry L. Deskins, Sr. Scholarship

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Client Alert

FTC Reverses Course on Treatment of Debt Payoff Under HSR Act

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News

Michael D. Mulligan Publishes Article in ACTEC Law Journal Comparing Sales to an Intentionally Defective Irrevocable Trust and a to Beneficiary Intentionally Defective Irrevocable Trust

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News

Lewis Rice Recognized as Top M&A Firm by BTI Consulting Group

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John C. Bodnar Named BTI M&A Client Service All-Star

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News

Claims Filed for Compensation in North Carolina Ecusta Trail Rail-to-Trail Case

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Client Alert

Supreme Court Limits Ability to Compel Access to Private Property Without Compensation

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News

David W. Sweeney Represents Advantes Group in $7.2 Million Apartment Project

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News

Lauren R. Carey Creates New Blog for Social Media Influencers

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News

Four Lewis Rice Attorneys Named 2022 “Lawyer of the Year” by Best Lawyers

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News

61 Lewis Rice Attorneys Named Best Lawyers for 2022, 16 Named Ones to Watch

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Client Alert

FTC Adds Teeth to the ‘Made in USA’ Rule

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News

Lewis Rice Wins $1.5 Million in Compensation for Covington Landowners

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Client Alert

Missouri Now Requires Employers to Provide Leave and Accommodations for Victims of Domestic and Sexual Violence

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