Mary L. Grieco
Chair, Intellectual Property Law Practice; Co-Chair, Brand Management & Protection Practice

Mary L. Grieco

Intellectual property attorney Mary Grieco helps her clients build and protect their brands and enforce their IP rights worldwide. In addition to maintaining an active practice, she chairs Olshan's Intellectual Property Law Group and co-chairs the firm’s Brand Management & Protection Group.

Mary advises her clients in all facets of brand development, management and protection. Representing clients spanning the fashion, cosmetics, entertainment, financial services, technology, food, restaurant, and general consumer goods sectors, Mary advises from brand ideation through strategic value enhancement. She helps clients optimize the value of their domestic and international trademark portfolios, offering guidance on copyright and design matters, securing protection for trademarks, copyrights and designs throughout the world, and structuring, negotiating and closing all types of agreements relating to intellectual property and brand management.

Her experience extends to IP licenses, distribution agreements, manufacturing agreements, and assignment agreements. With a strong litigation background, Mary is adept at handling trademark opposition and cancellation proceedings throughout the world. She works closely with lawyers from other departments at Olshan, advising on matters involving employment law, advertising, real estate, and other such matters as they pertain to intellectual property. And, in each instance, clients know that Mary’s advice will be clear and practical not only legal rights, obligations and risks perspective, but also based on their business realities and aspirations.

Mary also has extensive experience counseling clients in using the Internet and social media channels to grow their brands, helping her clients avoid pitfalls posed by Internet-based advertising, and advising on website content, domain name protection, and other Internet-related matters. She prepares privacy policies and terms of use for websites and mobile applications, prepares and negotiates influencer agreements, and SaaS agreements, advises on social media compliance, and advertising clearance, and provides guidance on laws and legal developments impacting their activities. Certified as an Information Privacy Professional for Europe (CIPP/E) by the International Association of Privacy Professionals, Mary is sought-after for counsel regarding data privacy laws and compliance with consumer privacy laws and related issues.

She represents both the sellers and purchasers of intellectual property rights and conducts IP due diligence in matters involving everything from a single trademark to multimillion-dollar IP acquisitions and sales and business M&As.

Always on the cutting edge, Mary has published numerous articles and often speaks on brand development and intellectual property, the use of intellectual property in social media marketing, privacy compliance, and IP-related hot topics.

  • Handled complex intellectual property due diligence for Steel Partners Holdings L.P. in its $600 million revolving credit agreement.
  • Advised Rent the Runway Foundation regarding its intellectual property matters when setting up the foundation.
  • Negotiated a major licensing arrangement between Resorts Casino Hotel and Jimmy Buffett regarding the Margaritaville Hotel in Atlantic City.
  • Negotiated an agreement on behalf of Columbus Turnstyle LLC for the digital advertising at the TurnStyle underground marketplace in the 59th Street Columbus Circle concourse in New York City.
  • Worked on the intellectual property and licensing aspects of a multifaceted deal between Mergent Inc. and Nasdaq OMX Group Inc.
  • Developed and managed a successful trademark licensing program for a high-profile, iconic musical group.




Honors & Recognitions

  • Recognized in The Best Lawyers in America® for Copyright Law, 2023-2024
  • Consistently listed by New York Super Lawyers since 2013
  • Awarded “Deal of the Year and Activist Campaign of the Year” by The Deal for representation of George Feldenkreis in his nomination of directors and successful unsolicited acquisition of Perry Ellis


  • Leadership Development Committee, International Trademark Association
  • International Association of Privacy Professionals

Blog Posts


J.D., Loyola Law School, 1987

B.A., University of California, Irvine, 1984


  • New York
  • California
  • District of Columbia
  • U.S. Supreme Court
  • U.S. Court of Appeals for the Federal Circuit
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