Lisa M. Mandrusiak is a senior associate in the firm's Litigation and Post Grant proceedings practice groups representing a diverse clientele in a variety of fields, including smartphones, pharmaceuticals, cosmetic compositions, business methods, and automotive technologies.

In addition to litigating cases in federal courts, at the International Trade Commission, and in Post-Grant proceedings at the United States Patent and Trademark Office (including IPRs and CBMs), Ms. Mandrusiak advises her clients on litigation procedure and strategies, litigation avoidance, and the overall protection, exploitation, and enforcement of global patent portfolios. Ms. Mandrusiak’s experience with international patent laws and prosecution enables her to better understand and communicate with foreign clients when strategizing and explaining U.S. patent laws.

Prior to attending law school, Ms. Mandrusiak worked as a Patent Technology Specialist at Shusaku Yamamoto Patent Attorneys in Osaka, Japan where she prosecuted hundreds of patent applications in a variety of countries including Japan, Europe, and the United States and advised clients on successful strategies for managing international intellectual property portfolios. During law school, Ms. Mandrusiak worked as a contract associate at Verrill Dana, LLP in Portland, Maine prosecuting patents and advising on intellectual property litigation matters.

With an educational background in molecular biology and genetics, she has a keen understanding of the sciences and technologies involved in her clients’ chemical, biochemical, biomedical and pharmaceutical inventions.


  • University of Maine School of Law (J.D., magna cum laude)
  • McGill University, Montreal, Canada (M.Sc.)
  • McGill University, Montreal, Canada (B.Sc., with distinction)


  • Registered to practice before the U.S. Patent and Trademark Office
  • Virginia
  • U.S. Court of Appeals for the Federal Circuit
  • Patent Trial and Appeal Board


Professional Affiliations

  • American Bar Association
  • American Intellectual Property Law Association (AIPLA)
  • The Pauline Newman IP American Inn of Court


  • ABA/BNA Award for Excellence in the Study of Intellectual Property Law (2011)
  • Wernick Prize for Legal Writing for the best legal scholarship submitted by a student (2011)


  • French


  • “Balancing Open Source Paradigms and Traditional Intellectual Property Models to Optimize Innovation,” Maine Law Review, 2010, Vol. 63, page 303.
  • “Transglutaminase potentiates ligand-dependent proteasome dysfunction induced by polyglutamine-expanded androgen receptor,” Human Molecular Genetics, 2003, Vol. 12, page 1497.