Timothy Shannon


  • Timothy Shannon
  • Phone: +1 857 488 4232

    Import to Address Book

  • Duane Morris LLP
    100 High Street, Suite 2400
    Boston, MA 02110-1724

Timothy R. Shannon maintains a national patent litigation practice. His practice involves extensive work in the software, electronics, LED lighting, computer chip manufacturing and medical device fields. Mr. Shannon’s complaint-to-trial experience includes sophisticated patent matters in courts across the country, from Massachusetts to Texas. Recent highlights include: first-chair leadership of a life-sciences (human mesenchymal stem cells) patent inventorship trial in the United States District Court for the District of Massachusetts; a patent enforcement action involving LED lighting technology in the District of New Jersey; a patent dispute concerning genetically modified mice (Alzheimer’s model) in the Middle District of Florida; representation of a Shanghai-based computer chip manufacturer in a patent troll case in the Eastern District of Texas; representation of a North Carolina-based integrated development environment software manufacturer in a patent troll case in the Eastern District of Texas; and representation of a Toronto-based life sciences company specializing in plant-based manufacturing/gene expression of human monoclonal antibodies. He also has experience in PTAB proceedings and the International Trade Commission.

Mr. Shannon is a graduate of Harvard Law School (J.D., cum laude, 2002), Oxford University (M. St., 1997) and Yale University (B.S., 1994).


  • Massachusetts
  • Maine


  • Harvard Law School, J.D., cum laude, 2002
  • University of Oxford, M.St., 1997
  • Yale University, B.S., Mechanical Engineering, 1994
  • Yale University, B.A., History, 1994


  • Duane Morris LLP
    - Partner, 2021-present
  • Verrill Dana LLP
    - Partner, 2012-2021
    - Counsel, 2010-2012
  • Wilmer Cutler Pickering Hale and Dorr LLP
    - Associate, 2002-2010

Professional Activities

  • Massachusetts Bar Association

  • Maine Bar Association

  • Cumberland County Bar Association

Honors and Awards

  • Listed in Best Lawyers in America, 2024
  • Listed as a "Notable Practitioner" in Managing Intellectual Property's IP Stars, 2023
  • Listed in Best Lawyers (New England) for Commercial Litigation and Intellectual Property, 2023

Media Hits

Selected Speaking Engagements

  • Panelist, “Virtual Civil Bench Trials,” Massachusetts Federal Bar Association, December 16, 2020

Representative Matters

  • Represented The Jackson Laboratory, a biomedical research institution, in patent infringement claims arising from its sale of genetically modified mice that mimic Alzheimer's Disease.

  • Represented Legrand North America, LLC, an audio video product manufacturer, as lead counsel in a patent licensing project involving disputes with Signify, the owner of an LED patent portfolio.

  • Represented OnPoint Systems, LLC, in a multi-patent infringement lawsuit in E.D. Tex. and parallel IPR proceedings at the PTO; asserting four patents concerning GPS-enabled dog collars against its arch-rival in the market, Protect Animals With Satellites, LLC.

  • Defended Kind LED Grow Lights LLC, an indoor LED grow lights company, as lead counsel in a multi-patent case brought by Signify concerning LED and wi-fi enabled LED lighting fixtures.