Dennis Keritsis

Dennis Keritsis focuses his practice on patent prosecution and preparation, as well as litigation support. He advises clients across a broad range of technical areas, including blockchain, cryptography, cybersecurity, networking, payment systems, artificial intelligence, additive manufacturing, and industrial equipment. He works with a wide range of clients, from start-ups to Fortune 500 companies.

Dennis also has experience supporting patent litigation, including developing claim construction charts, analyzing source code for infringement, reviewing technical documents, and identifying issues related to enablement, written description, and indefiniteness. He also has experience in opinion work, including conducting freedom-to-operate searches, analyzing invalidity positions, and rendering non-infringement opinions. In addition, Dennis performs clearance searches for M&A transactions and analyzes technical issues related to indemnification.

Before joining the firm, Dennis was a Patent Agent at a patent preparation and prosecution boutique and a Patent Examiner at the United States Patent and Trademark Office. While working for the United States Air Force, he gained experience programming flight plans and embedded systems and is proficient in several programming languages. Dennis also worked as a graduate research assistant at Western Michigan University, where he optimized routing algorithms for CNC machines using genetic algorithms.