Skip to content John M. Vassiliades


Two N. Central Avenue
Suite 2200
Phoenix, AZ 85004


M.B.A., University of Southern California

  • Member, Beta Gamma Sigma

M.S., Biotechnology, Johns Hopkins University

J.D., University of North Carolina School of Law

B.A., cum laude, Economics,  Duke University


Special Intellectual Property Advisor for SBIR-funded companies enrolled in the accelerator programs funded by the National Institutes of Health, the National Science Foundation and the U.S. Department of Energy

Top Lawyer, Phoenix Magazine (2022)


John Vassiliades is a partner in the Phoenix office of GRSM. He concentrates his practice on intellectual property, technology transactions and general business law for private and public technology-based companies.

A registered patent attorney, John has negotiated hundreds of business transactions that develop and monetize IP rights, including patent, trademark, copyright and trade secret licensing, R&D, M&A, IT, software, E-Commerce, Biotech/pharma, EdTech, energy, medical device, commercial OEM/VAR product distribution deals, strategic alliances, corporate technology collaborations, equity joint ventures, IP due diligence, patent strategy, risk assessments, among many other structures and projects, both domestic and international. He has also served on litigation teams as an IP advisor on cases involving computer software infringement, trade secret misappropriation, biotech patent infringement, Lanham Act trademark counseling and infringement and infringement involving mechanical/medical device inventions.


  • Arizona
  • New York
  • District of Columbia
  • Virginia
  • U.S. Patent and Trademark Office (Reg. No. 57,382)


  • Larta Institute

Community Involvement

  • Business Mentor and Strategic Business Consultant for high tech companies selected to be mentored in the accelerator programs funded and sponsored by the National Institutes of Health, the National Science Foundation, and the U.S. Department of Agriculture.
Publications & Presentations