John J. Cunniff

Of Counsel 239.254.2915


John J. Cunniff, a patent attorney, focuses his practice in patent law. He 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.


At Hahn Loeser 

John is well versed in preparing and prosecuting patent applications in the U.S. Patent and Trademark Office and worldwide through the World Intellectual Property Organization. He maintains management of national patent applications worldwide and is particularly experienced in the pharmaceutical industry. John earned his master’s degree in microbiology and an undergraduate degree in biology, prior to earning his law degree. He also holds a U.S. patent for Thermostable DNA Polymerase (#5,885,813).

*Licensed in Florida and Ohio.



Indiana University B.S., with honors in Biology 1984


Indiana University M.A., Microbiology 1988


University of Akron J.D., Deans List, Fall 1995, Spring 1996 1999

Memberships & Affiliations

American Bar Association, Member


American Intellectual Property Law Association, Member


Cleveland Intellectual Property Law Association, Member


Ohio State Bar Association, Member



Bar Admissions

State of Florida


State of Ohio


U.S. Court of Appeals for the Sixth Circuit


U.S. District Court for the District of Colorado


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


U.S. Patent and Trademark Office