Thomas P. O’Connell

Thomas P. O’Connell is an Arlington intellectual property lawyer and Registered Patent Attorney at O’Connell Law Office, with more than 25 years of experience representing individual inventors and corporate clients. He assists with patent, trademark, copyright, and enforcement matters, bringing technical understanding and litigation experience to complex protection strategies. His practice emphasizes careful analysis, attention to detail, and practical guidance for clients seeking to secure, defend, and use valuable ideas effectively in changing markets.

Mr. O’Connell earned his B.S.M.E. from the University of Lowell in 1991. He later earned his J.D., cum laude, from Massachusetts School of Law in 1994. His mechanical engineering background supports a patent practice involving technical review, invention development, and intellectual property strategy. This education helps him understand both legal requirements and the practical challenges inventors face when protecting designs, processes, products, and competitive business assets during prosecution and litigation matters.

Mr. O’Connell is admitted in Massachusetts and registered to practice before the United States Patent and Trademark Office. He is also admitted to the US Court of Appeals for the Federal Circuit, the US District Court for Massachusetts, and the US District Court for Colorado. His litigation work includes representation in federal court and in other federal and state courts across the country for intellectual property disputes in demanding legal matters.

Thomas P. O’Connell is also an inventor and sole patentee on two United States patents, giving him firsthand insight into the concerns inventors bring to the legal process. He serves on the Boston Patent Law Association patent law and litigation committees and belongs to multiple intellectual property associations. Clients rely on his technical knowledge, patent experience, and focused advocacy when protecting inventions, creative assets, and business rights with preparation and care.

Law Office Affiliations

• Attorney, O’Connell Law Office
• Member, Massachusetts Bar Association
• Member, Boston Patent Law Association, Patent Law and Litigation Committees

Licensed State

• Massachusetts

Education

• Massachusetts School of Law
  Juris Doctor (JD)
• University of Lowell
  Bachelor of Science (BS)

Awards & Badges