Elizabeth S. Weiswasser
Weil, Gotshal & Manges LLP

Elizabeth Weiswasser focuses her practice on the life sciences industry, with a particular emphasis on patent and other intellectual property matters relating to biologic and pharmaceutical technologies. In addition to her patent litigation practice, in which Ms. Weiswasser has litigated patent cases in venues across the county and across a broad range of technology areas, Ms. Weiswasser counsels clients across a broad range of intellectual property issues, and regularly handles diligence-related matters in the context of a broad range of corporate transactions in the life sciences sector.

Ms. Weiswasser is recognized for her work as a “Leading Lawyer” in the area of patent litigation by Chambers USA 2013, which states: “Elizabeth Weiswasser continues to impress with her superb work as a patent litigator concentrating on biologics and pharmaceuticals.” Chambers USA 2012 said: “In the words of clients, Elizabeth Weiswasser ‘inspires confidence.’ She is praised for her ‘strong background in molecular biology and the life sciences, which allows her to communicate effectively with scientists and medical professionals and explain scientific concepts to non-scientists.’” Ms. Weiswasser was named one of the "Top 250 Women in IP" by Managing Intellectual Property and included in the publication's list of "IP Stars" for 2013, and was selected by Law360 as one of only five “MVPs” for 2012 in the category of Life Sciences. She was also recommended for patent litigation in New York by IAM Patent 1000 2012-2013. In 2012, Ms. Weiswasser was named “Up & Coming Intellectual Property Lawyer of the Year” by Chambers USA Women in Law and was shortlisted for the same award in 2013.

Ms. Weiswasser is an Adjunct Professor of Law at New York University Law School, where she co-teaches Biotechnology Patent Law, and she is also a frequent lecturer and writer on intellectual property related issues in the life sciences and related sectors.

From 1992 to 1994, Ms. Weiswasser served as law clerk to the Honorable Alan D. Lourie, Circuit Judge of the United States Court of Appeals for the Federal Circuit. Ms. Weiswasser received her JD degree from The University of Chicago Law School, where she was a member of The Law Review, and her BA from Northwestern University in biochemistry, molecular biology and cell biology. Prior to entering law school, she did graduate work at Princeton University and research at Abbott Laboratories in the area of molecular biology. Ms. Weiswasser is licensed to practice before the United States Patent and Trademark Office.

Ms. Weiswasser has an extensive pro bono practice, including leading the team that represents the Epilepsy Foundation. She has been honored for her pro bono work by the Legal Aid Society and Westchester Residential Opportunities, for which her team received the Harriett Goldberg Fair Housing Award. Ms. Weiswasser is on the boards of the national Epilepsy Foundation and the Montclair Kimberley Academy.

  • Bar Admissions
    US Court of Appeals 3rd Cir.; US Court of Appeals 6th Cir.; US Court Federal Claims; District of Columbia; US Ct App Federal Circuit; Illinois State; Maryland State; New York State; Southern District New York
  • Education
    Northwestern University (B.A., 1988); University of Chicago Law School (J.D., 1992)
  • New York
  • +1 212 310 8022 tel
  • +1 212 310 8007 fax

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