David W. Grillo


Direct: 216.928.2892
Fax: 216.916.2406


Focus Areas


  • Cleveland-Marshall College of Law, J.D.
  • The Ohio State University, B.S.

Licensed to Practice

  • Ohio
  • U.S. Patent and Trademark Office
  • U.S. Court of Appeals for the Federal Circuit


David builds intellectual property portfolios for innovative companies to protect and monetize valuable ideas with patents for inventions and trademarks for branding. As a registered patent attorney, David has extensive experience preparing and prosecuting patent applications in software, electrical, and mechanical fields. Further, David is routinely engaged in offensive and defensive forward patent initiatives as well as portfolio development strategies, including patent acquisition and licensing. For nearly two decades, he has had the privilege of building portfolios for some of the world’s most inventive multinational corporations, institutions, and individuals.

Download David W. Grillo's Full Bio


  • Prepared and prosecuted hundreds of U.S. patent applications
  • Engaged routinely for portfolio development/forward patent harvesting
  • Counseled clients regarding patent valuation and acquisition
  • Counseled many clients regarding acquisition and enforcement of trademarks
  • Procured global patent and trademark rights with foreign counsel worldwide
  • Represented clients before the USPTO Board of Appeals
  • Represented clients in trademark cancelation proceedings
  • Negotiated coexistence agreements


  • Member, Intellectual Property Owners Association
  • Member, Intellectual Property Owners Association’s Software-Related Inventions Committee
  • Member, American Intellectual Property Law Association


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