Patricia Granahan

Patricia Granahan, ScD

Shareholder | Biotechnology
617.646.8250 LinkedIn Profile


  • Simmons College, AB
  • Harvard School of Public Health, MS, Nutrition
  • Harvard School of Public Health, ScD, Nutrition
  • Suffolk University Law School, JD

Key Technologies

  • Gene Therapy
  • Signal Transduction
  • Gene Activation
  • Oncology
  • Transgenics

Practice Groups

Admitted to Practice

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


  • Boston


Pat Granahan provides counsel, particularly in the areas of biotechnology and biopharmaceuticals, to many non-profit academic, medical and research institutions, start-up companies, and multinational businesses.

In her more than 30 years in practice, Pat has written and prosecuted patent applications and provided advice for protecting pioneering inventions in many areas of technology, such as gene therapy, signal transduction, gene activation, oncology, and transgenics. She has extensive experience in obtaining and defending patent rights in the United States, as well as in other countries; providing legal opinions as to patentability and inventorship, patent validity, infringement and freedom to operate; and drafting and providing advice relating to licensing, technology transfer, and confidentiality agreements.

Pat previously served as Patent Counsel at the Whitehead Institute for Biomedical Research and has worked in product development and evaluation as a member of the Life Sciences Division at Arthur D. Little, Inc. She also headed a University of Massachusetts nutrition education program for children in low-income families, worked on analysis of hematology and dietary data from a large federal study, and taught nutrition in a Boston college. Prior to joining Wolf Greenfield, Pat was a partner at an Am Law 10 law firm in Boston.


  • Drafted and prosecuted a ground-breaking gene therapy patent portfolio for biotechnology start-up which increased its value significantly and eventually led to its acquisition by a large pharmaceutical company.
  • Managed filing, prosecution, and licensing of several fundamental technologies in the area of gene activation and cell signaling.  
  • For numerous academic and research institutes, established written patent policies and procedures to provide systematic structure to technology development and protection.
  • A major research institute client had a patent on a valuable product whose filing date was threatened with invalidation due to a third party’s accusation of an on sale bar based on packing materials shipped with the product. Investigated how and when printed materials were produced and products delivered and was able to demonstrate there was no proof the materials were shipped prior to the one year date, preventing the on sale bar and saving the client’s product from invalidation.


Pat has been named for several years as one of the Top 50 Women Lawyers in Massachusetts by Boston Magazine and has also been repeatedly named to the list of Massachusetts Super Lawyers for her work in the field of intellectual property law. She was also named to Arrive magazine’s list of Top Women Lawyers in the Northeast and also has been repeatedly named to The Best Lawyers in America©. Most recently, Pat was named one of Massachusetts Super Lawyers’ top 100 Women Attorneys.


  • Manheim BS Jr , Granahan P, Dow KJ. (2006) 'Follow-on biologics': ensuring continued innovation in the biotechnology industry. 25(2):394-404.

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