Patrick J. Daugherty, Partner

Patrick focuses on the preparation and prosecution of US and international applications for patent, trademark, design, plant patent and plant variety protection certificate, copyright, and related intellectual property rights; performing patentability searches; and preparing non-infringement, invalidity, freedom to use, and opposition opinions. He also helps clients monetize and protect intellectual property assets through negotiating licensing, assignment, trade secret, confidentiality, and other business agreements, and enforcing those rights in a court of law.

Patrick’s intellectual property subject matter expertise includes botanical and data science and large data set analysis, image data acquisition and processing, video analytics, electronic circuitry and associated programmable devices, service-oriented architecture and service technology, computer networking and data packet communications, processing chip structures and design, medical imaging and instrumentation, metal and substrate treatment and conditioning, and a rich variety of commercial and consumer tooling, appliances and associated articles.

Patrick also served as a professional firefighter while developing his intellectual property practice, until retiring in 2008 as a Captain of the Cleveland Fire Department. Services included interpretation and enforcement of fire, life safety, building and hazardous materials codes and referenced standards in criminal, civil, and administrative law proceedings; and command of fire companies and fire stations while directly providing emergency medical and fire suppression services to the public.


  • Studies in electrical engineering and applied physics, Case Western Reserve University, Case Institute of Technology, Cleveland, Ohio, class of 1982
  • B.A., communications, Cleveland State University, College of Liberal Arts & Social Sciences, Cleveland, Ohio, 1987
  • J.D., Cleveland-Marshall College of Law, Cleveland, Ohio, 1993

Registrations / Admissions:

  • Ohio State Courts, Reg. No. 61,519, 1993
  • United States Patent and Trademark Office, Reg. No. 41,697, 1998
  • United States District Court, Northern District of Ohio, 1999
  • United States Court of Appeals for the Sixth Circuit, 2004


  • Ohio State Bar Association
  • Cleveland Intellectual Property Law Association
  • American Intellectual Property Law Association

Daugherty & Del Zoppo Co., L.P.A. is a firm of intellectual property law practitioners that provides high-quality legal services to both businesses and individuals. Our practitioners have experience in all areas of intellectual property law, including patents, copyrights, trademarks, plant patents as well as protection rights registrations, trade secrets, and unfair competition and technology law. We have extensive experience in preparing and prosecuting patent applications; preparing non-infringement, invalidity, freedom to use, and opposition opinions; and protecting assets through negotiating and enforcing licensing, assignment, trade secret, confidentiality, and other business agreements.


Daugherty & Del Zoppo Co., L.P.A
PO Box 431, Mentor, OH, 44061
Phone: (440) 391-5100