Michael J. Twomey

Michael J. Twomey

Shareholder | Biotechnology
617.646.8580 Michael.Twomey@WolfGreenfield.com LinkedIn Profile


  • Harvard University, AB, Biological Sciences, magna cum laude
  • Harvard Law School, JD, cum laude

Practice Groups

Admitted to Practice

  • Massachusetts
  • US District Court, District of Massachusetts
  • US Court of Appeals for the Federal Circuit
  • US Patent and Trademark Office


  • Boston


Michael Twomey has more than 25 years of experience as intellectual property counsel to biotechnology and life sciences companies. His practice includes client counseling in all aspects of domestic and foreign patent prosecution, as well as patent portfolio management and development. He is skilled in negotiation of patent licenses and the conduct of IP due diligence analyses in connection with mergers, acquisitions, and venture capital financings. He also provides clients with opinions relating to issues of patent infringement and validity, and conducts clearance studies and freedom-to-operate opinions for new product development and launches.

In addition, Michael has experience in US Patent Office post-grant proceedings, including inter partes reviews (IPRs), inter partes reexams and ex parte reexams; appeals before the US Board of Patent Appeals and Interferences, and the Court of Appeals for the Federal Circuit; oppositions before the European Patent Office; and US district court patent litigation.

Michael was a National Science Foundation Graduate Fellow in biology from 1985–1988, and a Graduate Fellow in the Department of Biological Sciences at Stanford University from 1985–1990, where he conducted research in population genetics relating to the evolution of mutation and recombination rates.

He previously served as a partner at an Am Law 50 law firm, after beginning his career as an associate at Wolf Greenfield.


  • American Intellectual Property Law Association
  • Boston Patent Law Association
  • Community Boating, Inc. (pro bono representation)


  • Repeatedly named to The Best Lawyers in America©
  • Recommended in the 2016 edition of The Legal 500 United States for intellectual property: patents: portfolio management and licensing
  • Repeatedly named a "Life Science Star" by LMG Life Sciences

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With my adult friends, I am an enthusiastic (but unaccomplished) yachtsman in the Marblehead off-shore PHRF racing fleet, an avid (but occasionally dangerous) downhill skier, and a PADI-certified (but sometimes anxious) scuba diver. With my children, I am an expert golfer (on courses with miniature windmills and castles), basketball player (easily dunking shots on our five-foot high hoop) and weight-lifter (easily hefting a kitchen chair with a single hand).