Eugene P. Sunday

Eugene P. Sunday is a member of the Intellectual Property Department and Patent Practice Group.

Eugene has more than 12 years of experience helping businesses obtain intellectual property protection for their inventions in the U.S. and abroad, including foreign prosecution experience with EPO, Japan, China, and other countries.

His patent practice focuses on the preparation and prosecution of patent applications in the chemical and material sciences industries including small molecules, polymers, shape memory polymers, organic chemistry, inorganic chemistry, photo-voltaic cells, and water filtration systems.

In addition to these areas, his patent experience also includes networks, software, game design, artificial intelligence, machine learning, SaaS, application design, IOT, AR/VR devices, Heads UP displays, telecommunication devices, RFID, circuit design, semiconductors, integrated circuits, and more.

Eugene believes in a holistic approach to his legal practice with a focus on the client or company’s comprehensive patent execution strategy to ensure a synergy between all constituents involved in the matter.

Before joining Flaster Greenberg, Eugene was a name partner of Sunday IP Law, LLC, a boutique intellectual property law firm that he founded in 2011. In this role, he advised Fortune 100 companies with their patent portfolios in the areas of applications, software, electrical engineering, E-Commerce, RFID, IOT, and material sciences to provide comprehensive, intellectual property protection services to protect clients' investments in research and development, while minimizing costs.

He provided comprehensive, intellectual property protection services to protect clients' investments in research and development; advised and assisted clients with litigation, patent portfolios, licensing, business development, contracts, and related strategies; and prepared, filed, and prosecuted U.S. provisional, utility, design, and Patent Cooperation Treaty applications, and IPRs.

Eugene also worked for the U.S. Navy as a nuclear engineer/reactor operator where he steered daily operations of all reactor systems and, most notably, repaired critical equipment during an engineering failure that allowed combat operations to continue without any loss of operational capability.

Articles & Alerts


  • Ohio
  • United States Patent and Trademark Office


  • University of Dayton School of Law, J.D.
    • Editor, Law Review
  • University of Texas at Austin, M.S., Electrical Engineering; M.S., Chemical Engineering; B.S.,

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