Mark J. Itri


Costa Mesa
T +1.714.966.8814
F +1.714.754.6611


Mark Itri concentrates his practice on the preparation and prosecution of patent and trademark applications and litigation matters, focusing on high technology relating to electronics and computer software arts, semiconductors, analog circuitry, microprocessor design, Internet of Things, image processing, pattern and speech recognition, server and network systems, WiFi and Bluetooth, mechanical devices, medical devices, solid state memories, authentication, cyber security and instruments. He also negotiates and drafts technology transfer agreements, joint development agreements and licenses and advises his clients on strategic IP planning, patent and trademark portfolio management, freedom to operate and other opinion work and due diligence in connection with technology and trademark acquisitions.

A former electrical engineer, Mark worked in the research and development of microprocessor designs and flight control systems in the private aerospace industry, giving him an insider's perspective of the patent and trademark process. He has been named among the Daily Journal's Top 25 Portfolio Managers, one of the leading lawyers in the U.S. for utility and design patent prosecution by The Legal 500, and as one of "The World's Leading Patent Practitioners" by Intellectual Asset Management (IAM) Patent 1000.

Recognitions and Memberships


  • IAM Global Leaders: Elite Patent Practitioner (2019 and 2022)
  • IAM Patent1000: The World's Leading Patent Professionals (2013 to 2021)
  • Daily Journal 
    • Top Intellectual Property Lawyers in California (2019)
    • Top 25 Portfolio Manager (2008 to 2011 and 2013 to 2018)
  • The Legal 500
    • Hall of Fame, Intellectual Property: Patents: Prosecution (including re-examination and post-grant proceedings) (2020 to 2021)
    • Leading Lawyer, Intellectual Property: Patents: Prosecution (including re-examination and post-grant proceedings) (2019)
    • Recommended, Intellectual Property (2010 to 2018)
  • Best Lawyers in America®: Recognized, Litigation - Patent Law and Trademark Law (2016 to 2018)
  • Managing Intellectual Property: IP Patent Star - California (2013 to 2021)
  • The National Law Journal: Intellectual Property Trailblazers and Pioneers (2014)


  • Mauli Ola Foundation - Educates, spreads awareness and provides alternative therapies for genetic disorders, such as cystic fibrosis: Board of Directors
  • Surfrider Foundation - Works to protect and preserve the world's oceans, waves and beaches. 

Pro Bono

  • Mauli Ola Foundation 
  • Surfrider Foundation  
  • Public Law Center for Battered Women

Emerging Issues


  • U.S. Court of Appeals, Federal Circuit
  • California
  • U.S. Patent and Trademark Office, Registration No. 36,171


  • J.D., Suffolk University Law School, 1990
  • B.S., Electrical Engineering, Boston University, 1985