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Harry D. Cornett, Jr.

Cleveland, OH | D 216.696.2618 | F 216.592.5009

Harry D. Cornett, Jr. is a Fellow of the American College of Trial Lawyers.

In the past four years he served as chair of the College’s Ohio State Committee and as the national chair of the Legal Ethics and Professionalism Committee.

Harry has tried many civil and criminal cases to verdict before judges and juries across the United States. His trials in recent years have involved patents, trade secrets, contracts, director and officer liability, professional liability, products liability, and legal malpractice. In the last 15 years he has tried cases in California, Texas, Indiana, West Virginia, and Ohio.

In the 1970s and 1980s Harry handled a high volume of insurance defense and medical malpractice cases and he tried over 100 jury trials to verdict in that time period. Those trials included many criminal cases. Beginning in 1987, as outside counsel for the FDIC and FSLIC, he led investigative and trial teams in cases against a number of directors and officers of failed financial institutions. Among his accomplishments in that role was a victory in the Fifth Circuit Court of Appeals in which he argued and won a seminal case on director and officer liability and pre-judgment equitable remedies.

In the late 1980s Harry began to handle a wide variety of intellectual property cases. He tried his first patent case in the mid-90s and he began to work closely with patent lawyers. Intrigued by the technical challenges of patent cases, he went back to school at night, earned a degree in physics, and became a registered patent lawyer in 2009. In addition to his active trial practice he has been General Counsel of Tucker Ellis since its formation.

Ohio Supreme Court Briefs and Arguments
education & admissions


  • The Ohio State University College of Law (J.D., cum laude, 1971); Ohio State Law Journal, Board of Editors; Order of the Coif
  • Miami University (B.A. in English, 1967)
  • Cleveland State University, College of Science (B.A. in Physics, 2009)

state admissions

  • Ohio, 1971

federal admissions

  • Supreme Court of the United States
  • United States Patent and Trademark Office
  • United States Court of Appeals, Fifth Circuit
  • United States Court of Appeals, Sixth Circuit
  • United States Court of Appeals, Federal Circuit
  • United States District Court, Northern District of Ohio
  • United States District Court, Southern District of Ohio
  • United States District Court, Northern District of Texas
services & industries

service areas

industries represented

  • Chemical
  • Food Manufacturing
  • Hospitals
  • Legal Services (Law Firms)
  • Machinery Manufacturing
  • Medical Devices
  • Medical Professionals (Doctors & Nurses)
  • Pharmaceutical & Medicine
  • Transportation Equipment
publications & events

Recent Speaking Engagements

  • Marijuana and Ohio Businesses: Anticipation and Confusion at an All-Time "High," 2017 In-House Counsel Summit, Tucker Ellis LLP, Cleveland, Ohio (October 2017)
  • Ethics and Professionalism, The American College of Trial Lawyers and The Ohio State Bar Association, Columbus, Ohio and simulcast to seven other locations (Annually 2003-2012)
  • Legal Ethics, The American College of Trial Lawyers, Naples, Florida (November 2012)
  • General Counsel’s Panel, AON Law Firm Symposium, New Orleans, Louisiana (October 2012)
  • Trial Ethics Teaching Program, The American College of Trial Lawyers, Naples, Florida (November 2011)
  • Professionalism, The American College of Trial Lawyers, Chicago, Illinois (November 2010)
  • Ethics and Professionalism, U.S. Department of Health and Human Services, Cleveland, Ohio (September 2010)
  • Professionalism for Trusts and Estates Lawyers, KeyBank and National City Bank, Cleveland, Ohio (June 2007)
  • Ethics, Cleveland Bar Association, Practice and Procedure Clinic, Cleveland, Ohio (April 2007)
  • Ethics and Professionalism for the Cuyahoga County Common Pleas Court’s Judicial Staff Attorneys, Cleveland, Ohio (August 2006)



  • Chapter 5, “Duties, Responsibilities, and Potential Liability of Directors and Officers," Banks and Thrifts Government Enforcement and Receivership (current edition 2009), 1991, Matthew Bender, Co-Author

articles and notes

  • "The American College of Trial Lawyers Code of Pretrial and Trial Conduct," The Federal Bar Association Journal, Inter Alia (August 2010)
  • "Professionalism," The Cleveland Metropolitan Bar Association Journal (July-August 2010
  • "The Duty to Report Violations of the Rules of Professional Conduct: Alternative Views," Cleveland Bar Journal, February 2008, Vol. 79, No. 12, Co-Author
  • "The Work Product Doctrine and Expert Reports," Cleveland Bar Journal, July/August 2006, Vol. 77, No. 18, Co-Author
  • "Ex Parte Contact with Current and Former Employees of an Opposing Corporation," Cleveland Bar Journal, October 2005, Vol. 76, No. 11, Co-Author
  • "Involuntary or Inadvertent Disclosure and the Attorney-Client Privilege," Cleveland Bar Journal, February 2005, Vol. 76, No. 4, Co-Author
  • "Attorney Client Privilege," Cleveland Bar Journal, October 2004, Vol. 75, No. 11, Co-Author
  • The Best Lawyers in America® (1995-2020) 
    • Litigation – Intellectual Property
    • Legal Malpractice Law – Defendants
      • Cleveland Lawyer of the Year (2014, 2016, 2018)
    • Criminal Defense: White-Collar
  • Ohio Super Lawyers® (2004-2018)
    • Intellectual Property Litigation

in the community
  • American College of Trial Lawyers, Fellow 
    • Legal Ethics & Professionalism Committee, Chair (2012-2014)
    • State Committee, Chair (2011-2013)
  • Cleveland Metropolitan Bar Association 
    •  Ethics & Professionalism Committee, Chair (2007-2008)
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