Elizabeth Stotland Weiswasser
Key details
- Job title: Partner, litigation department co-chair
- Firm: Paul, Weiss
- Jurisdiction: US
Elizabeth (Liz) Weiswasser, is renowned for leading teams to courtroom victory in high-profile IP disputes within the life sciences sector. She counts among her clients Regeneron Pharmaceuticals, Altria, Daiichi Sankyo, and Johnson & Johnson.
A patent litigator with more than three decades’ experience, she is deeply experienced in every venue where patents are adjudicated and has long been known as one of the leading practitioners—and particularly women—in her field.
With a background in molecular biology and biochemistry, Weiswasser combines her deep scientific and patent law expertise as a litigator and strategic advisor.
She has led patent cases across biopharma technologies, including biologics, small molecules, drug delivery, and treatment methods.
She is known for handling disputes across a variety of forums, including district courts, the Federal Circuit, the International Trade Commission, and the US Patent Trial and Appeal Board.
Beyond her legal practice, Weiswasser is committed to mentorship, pro bono work, and community service, for which she has been honoured by the Legal Aid Society.
She regularly speaks on life sciences topics and serves on various educational and community boards.