Department profile

Product Liability & Mass Torts: Highly Regarded
USA Guide 2026 : USA - Nationwide
Rankings

Ranked Individual
Ranked Individual
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Work Highlights
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Weil secured a victory for L’Oreal USA in an MDL in Illinois federal court alleging that hair relaxers cause breast, uterine and other cancers.
Strengths
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Weil, Gotshal & Manges is a great firm for product liability work.
Product Liability & Mass Torts: Highly Regarded respondentUSAThe attorneys at Weil, Gotshal & Manges display strong subject matter expertise.
Product Liability & Mass Torts: Highly Regarded respondentUSAThey are an exceptional team.
Product Liability & Mass Torts: Highly Regarded respondentUSAWeil, Gotshal & Manges handles the most complex litigation matters.
Product Liability & Mass Torts: Highly Regarded respondentUSA
Notable Practitioners
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Band 1 
Band 1 
Diane P Sullivan
Diane Sullivan is an esteemed trial lawyer with experience acting as lead counsel on numerous market-leading mass torts. Alongside her experience in representing Fortune 500 companies on nationwide talc litigation, she is also active in environmental and natural resource cases. Diane Sullivan is an excellent trial lawyer.
Product Liability & Mass Torts: Highly Regarded respondentUSA
Ranked Individuals at Weil, Gotshal & Manges LLP (1)
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