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Clendenen & Shea LLC Law FIrm, New Haven CT



Patrick Clendenen practices general, civil, business, intellectual property litigation and personal injury.  He is a trial lawyer with significant experience in sophisticated business and fiduciary disputes, including contracts, consumer financial services, products liability, business torts, class action suits, derivative actions, and securities matters. He also focuses on intellectual property litigation, including Internet, patent trade mark, copyright, and trade secret matters.


Pat Clendenen has represented a wide range of individual public and private business clients nationally in both the state and federal courts of Massachusetts, New Hampshire, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Virginia, West Virginia, Illinois, Georgia, Alabama, North Carolina, Missouri, Florida, Texas, Arizona, Ohio, and California.  He also represents individual and business and corporate clients in domestic and international alternative dispute resolution.

Following law school, Mr. Clendenen was a Law Clerk to the Honorable Ellen Bree Burns, then Chief Judge of the United States District Court for the District of Connecticut.


Catholic University of America, Columbus School of Law, J.D., Dean’s Award,1991

Colby College, A.B., magna cum laude and Phi Beta Kappa, 1988.


1991, Connecticut

1992, U.S. District Court, District of Connecticut

1993, Massachusetts

1994, U.S. District Court, Massachusetts

1994, District of Columbia

1996, U.S. Court of Appeals, First Circuit

2007, U.S. Supreme Court



  • American Bar Association, (Chair, Business Law Section)

  • Editor in Chief, The Business Lawyer, Volume 73

  • Past Chair, Business and Corporate Litigation Committee

  • Massachusetts Bar Association

  • Connecticut Bar Association

  • Member, Executive Committee, Federal Practice Section, Connecticut Bar Association

  • District of Columbia Bar Association

  • New Haven County Bar Association

Patrick T. Cledenen


General Civil Litigation
Commercial Litigation
Construction Litigation

Business Litigation

Real Estate Litigation

Insurance Litigation

Intellectual & Property Litigation
Personal Injury
Employment & Labor Law
Insurance Claims & Recovery

Corporations, Partnerships, Medical & Dental Practices

Constitutional Law & Civil Rights

Federal Practice


Read more about our expert legal team:

William H. Clendenen, Jr.

William H. Clendenen, Jr.

William H. Clendenen, Jr.

Kevin C. Shea

William H. Clendenen, Jr.

Patrick T. Clendenen

William H. Clendenen, Jr.

Charles J. Donato

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