Timothy R. Shannon

T: (207) 253-4622
  • Harvard Law School (J.D., 2002), cum laude
  • Oxford University (M.St., 1997)
  • Yale University (B.S., 1994)


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"Tim and his team mastered the patent, mastered our product inside and out, and led a claim construction argument that literally threatened to derail [the Plaintiff’s] entire national campaign. Tim never let up and got us a great result. I highly recommend his service."
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Best Lawyers® 2018 Portland, ME Litigation - Patent "Lawyer of the Year”
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Named a Future Star in the 2018 edition of Benchmark Litigation
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Named a 2018 IP Star by Managing Intellectual Property
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Selected for inclusion in The Best Lawyers in America© 2019.
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Selected for inclusion in the 2018 issue of Super Lawyers & Rising Stars©.


With clients from Shanghai to Toronto to California, Tim Shannon maintains a national litigation practice in a variety of high-tech fields, with a particular focus on patents and patent “troll” litigation. Tim’s practice involves extensive work in the software, electronics, lighting, computer chip manufacturing, and medical device fields. His complaint-to-trial experience includes Markman hearings in courts across the country, from Massachusetts to Texas. Recent highlights include:

  • Representation of a Shanghai-based computer chip manufacturer, through Markman and settlement, in a patent troll case in E.D. Tex.
  • Representation of a North Carolina-based Integrated Development Environment software manufacturer in a patent troll case in E.D. Tex.
  • Representation of a Toronto-based life sciences company specializing in plant-based manufacturing/gene expression of human monoclonal antibodies.
  • Representation of a national LED lighting company in extensive patent licensing negotiations and pre-suit investigation against a 200-patent portfolio.

Clients have entrusted some of their most difficult and technologically-sophisticated cases to Tim and his team. In the words of one client:

Just OUTSTANDING. It was dramatic, calculated, strategic, I could go on and on! You set it up perfectly and dropped the bombs at the right time and it was checkmate before they even knew it. Boy, were we lucky to have you on our side. You guys OWNED this case.

Prior to joining Verrill Dana, Tim practiced in the #1-ranked IP litigation practice group at WilmerHale. While there and since, Tim has handled patent cases involving a wide range of technologies, including software, data- and telecommunications, online banking, computerized mammogram screening, controlled fluid delivery in medical devices, spinal fixation, and blood glucose testing.

Tim also maintains a substantial pro bono practice, most recently representing a teenage boy in an appeal to the Maine Supreme Judicial Court concerning a family matter. He has previously represented Algerian-born detainees held at Guantanamo Bay (“GTMO”) seeking transfer out of GTMO.

When not practicing law, Tim is active in local, state, and federal politics. He is a former member of the Hillary for Maine Finance Committee and of the Obama for Maine Finance Committee. He is chairman of the Yarmouth Town Democratic Committee. He is the President Elect of the Federal Bar Association of Maine and – most important – a devoted husband and father of three fantastic kids.

Representative Matters and Recent Case Highlights

Commercial Litigation

Intellectual Property Litigation

Public Service

Yarmouth Town Council
Board of Directors, Children's Museum and Theatre of Maine
Office of the High Representative, Human Rights Officer (Sarajevo, Bosnia)
Soros Foundation, Volunteer (Bosnia)
Special Assistant Attorney General (Massachusetts)


Federal Bar Association
American Intellectual Property Law Association 


  • Harvard Law School (J.D., 2002), cum laude
  • Oxford University (M.St., 1997)
  • Yale University (B.S., 1994)

Bar Admissions

  • Massachusetts, 2002
  • Maine, 2009

Court and Other Admissions

  • U.S. Supreme Court
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the District of Maine
  • U.S. District Court for the District of Massachusetts


Recognized by Best Lawyers® as the 2019 Portland, Maine Litigation 
    - Intellectual Property Lawyer of the Year
Recognized by Best Lawyers® as the 2018 Portland, Maine Litigation 
    - Patent Lawyer of the Year
Listed in The Best Lawyers in America© under Litigation - Intellectual
    Property, Litigation - Patent
Selected by peers for inclusion in New England Super Lawyers© under 
    Business Litigation
Selected by peers for inclusion in Massachusetts Rising Stars® under 
    Business Litigation and Intellectual Property Litigation
Named a Global IP Star by Managing Intellectual Property (2015-2018) 
Selected as a Future Star by Benchmark Litigation