Praised by clients for its ‘trial experience’ and ’technical expertise’, Weil, Gotshal & Manges LLP is a go-to firm for start-ups and leading companies across the life sciences, biotech and high-tech sectors seeking representation in high-stakes patent litigation. The team demonstrates strength in both appellate proceedings and trials, having recently won a major jury trial on behalf of Altria in a competitor patent infringement suit. In Silicon Valley, Edward Reines chairs the department, leveraging his ‘deep patent expertise’ to try complex patent disputes. Derek Walter, also based in Silicon Valley, represents life science companies in patent litigation before the ITC, PTAB and US district courts. Anish Desai and Elizabeth Stotland Weiswasser departed in December 2024.
Legal 500 Editorial commentary
- Profile
Testimonials
Collated independently by Legal 500 research team.
‘Trial experience. Technical expertise. High level of competence.'
‘Edward Reines and Anne Cappella have deep patent expertise.'
‘Adrian Percer; excellent patent litigation partner who dives deep, can easily pick up extremely complex technology and apply the law to it, and who has impeccable client management skill for executives. ’
Key clients
- Regeneron Pharmaceuticals, Inc.
- Altria Group, Inc.
- LiquidPower Specialty Products Inc.
- Daiichi Sankyo
- Nuance Communications, Inc.
- Bio-Rad Laboratories
- Synthego Corporation
- Nautilus Biotechnology
- HP Inc.
- CareDx
Work highlights
- Secured significant appellate victories for biologics innovator Regeneron Pharmaceuticals in a patent/antitrust dispute regarding its >$10B eye treatment franchise.
- Sealed a win for Nuance Communications in the Federal Circuit in a patent dispute over AIenabled 3D medical imaging technology.
- Representing Synthego in a Federal Circuit appeal of a PTAB decision Weil secured that decisively invalidated two competitor patents (including all 63 claims in those patents) that that were asserted against our client, a CRISPR-focused synthetic biology company, and the CRISPR community more broadly.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Anish Desai
Practice head
Edward Reines
Other key lawyers
Derek Walter; Anne Capella; Adrian Percer