Margaret O’Boyle

O'Melveny & Myers LLP

$ $$$

New York 10036 NY US

Margaret O’Boyle is an intellectual property litigator who focuses on patent litigation with a particular emphasis on representing clients in the pharmaceutical, biological, biotechnology, and chemical arts industries.

She assists clients with ANDA patent litigation under the Hatch-Waxman Act, inter partes review proceedings before the Patent Trial and Appeal Board and Federal Circuit Appeals, and patent validity opinions.

Margaret effectively litigates on her clients’ behalf by applying her knowledge of the relevant laws and sciences impacting their matters while keeping their overall business goals in mind.


  • Represented innovator pharmaceutical company and university in multiple cases against generic companies in ANDA litigations on patents related to anti-HIV treatment (S.D.N.Y.); secured favorable settlement agreement
  • Represented innovator pharmaceutical company against generic company in ANDA litigation on patent related to anti-cholesterol treatment (D.N.J.); won summary judgment on prosecution laches and patent misuse
  • Represented innovator pharmaceutical company in ANDA litigation on patents related to cancer treatment (D.N.J.); secured favorable settlement agreement
  • Represented innovator pharmaceutical company in Federal Circuit appeal of Patent Trial and Review Board inter partes review decision related to patents covering marketed biologics
  • Currently representing innovator pharmaceutical company in multiple litigations against nine generic companies on chemical compound and formulation patents related to a drug marketed for the treatment of multiple myeloma (D. Del.)


  • Connecticut
  • New York
  • US District Court, Eastern and Southern Districts of New York


  • University of Connecticut, J.D.: Executive Editor, University of Connecticut Public Interest Law Journal
  • Emory University, B.S., Neuroscience and Behavioral Biology


  • American Intellectual Property Law Association
  • Federal Circuit Bar Association
  • Intellectual Property Owners Association


Rate : $$$$

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New York 10036 NY US
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Lina Stillman

Broadway 42
New York 10004 NY US