John J. Cunniff, Intellectual Property Attorney

John J. Cunniff

Of Counsel

5811 Pelican Bay Boulevard
Suite 650
Naples, Florida 34108

Primary Practices

John J. Cunniff is a registered patent attorney is certified by the Florida Bar as a Specialist in Intellectual Property Law. Board certification recognizes attorneys’ special knowledge, skills and proficiency in various areas of law and professionalism and ethics in practice. John provides expertise on intellectual property law, including patents, trademarks, copyright, trade secrets, and legal opinions on patentability, infringement and validity issues. He prepares and reviews confidential disclosure and joint-development agreements, and trade-secret protection plans. John’ counseling also consists of prosecution of Internet domain-name complaints. 

John also deals with the preparation and prosecution of trademark registration applications and with utility, design and plant patent applications in the U.S. Patent and Trademark Office and worldwide. He also manages trademark registrations and issued patents domestically and internationally. His core technologies include biotech/biomedical, biochemical, plants, polymers, and biological and mechanical arts.

Prior to becoming an attorney, John spent seven years as a research associate for Amersham Pharmacia Biotech/US Biochemical Corporation, a major supplier of enzymes and reagents used in pharmaceutical research. He also worked for six years as a senior research associate at the Jackson Laboratory, a leading genetics research laboratory. He also holds a U.S. patent for Thermostable DNA Polymerase (#5,885,813) as well as corresponding patents in Canada, Japan and Europe.

John is licensed in Florida and Ohio. He is also licensed to practice before the U.S. Patent and Trademark Office in Patent Matters. 

 Professional History

  • Of Counsel, Hahn Loeser & Parks LLP, 2012-present; Associate, 2004-12
  • Associate, Renner, Kenner, Greive, Bobak, Taylor & Weber, 1999-2004
  • Research Associate, American Pharmacia Biotech/US Biomedical Corp., 1992-99
  • Senior Research Assistant, The Jackson Laboratory, 1986-92


  • University of Akron, J.D., 1999
    • Honors & Activities: Dean’s List
  • Indiana University, M.A., Microbiology, 1988
  • Indiana University, B.S., Biology with honors, 1984
Community Involvement

DDC Clinic, Member, Institutional Review Board


Akron Volunteer Legal Services, Former Member


Cleveland Intellectual Property Law Association, Former Director


Firestone High Aquatic Association, Former Treasurer


Firestone Football Association, Former President

Awards & Distinctions

Inventor, U.S. Patent No. 5,885,813: Thermostable DNA Polymerase


Top Lawyer, Naples Illustrated, Intellectual Property Law, 2021.

Bar Admissions

U.S. Patent and Trademark Office


U.S. District Court for the Northern District of Ohio


State of Florida


State of Ohio


U.S. Court of Appeals for the Sixth Circuit


Florida Bar Board Certified Specialist, Intellectual Property


District Court of Colorado