Weil’s appellate capabilities cover all of the Firm’s substantive areas of expertise and have been honed by extensive experience prosecuting and defending appeals before the U.S. Supreme Court, every federal circuit court, and a range of state intermediate and supreme courts.

Notable Representations, Key Contacts

Weil named to 2021 Appellate Hot List.

The National Law Journal

Appellate counseling should serve as an integral part of an overall litigation strategy, not as a consequence of it. Accordingly, our appellate lawyers typically play a major role in development and briefing of legal arguments well before the appellate phases of litigation.

Experienced and highly credentialed team

Our seasoned appellate lawyers have successfully prosecuted and defended precedent-setting appeals in the U.S. Supreme Court, all 13 federal circuit courts, intermediate appellate and supreme courts of numerous states, and high courts of foreign countries.

Our team includes many former clerks to federal appellate judges and U.S. Supreme Court justices, constitutional scholars, a former Assistant to the Solicitor General at the U.S. Department of Justice, and a former Assistant Solicitor General for the State of New York.

Broad range of substantive appellate experience

Weil’s appellate experience includes securities, copyright and trademark, patent, tax, professional malpractice, bankruptcy, complex business torts, antitrust, civil rights, and constitutional law, among other areas.

Multi-disciplinary appellate advocacy

We are effective in any appellate situation, whether it be obtaining mandamus relief on behalf of corporate defendants facing unwieldy discovery demands, challenging the applicability or constitutionality of unfairly applied statutory schemes, enforcing arbitration rights, defending nationwide class actions, or overturning large jury verdicts in product liability cases.

Cutting-edge issues

We regularly litigate questions of first impression and novel legal theories, interpreting complex statutes and regulations in uncharted areas of the law, as well as cutting-edge scientific and technological issues.

Well-respected patent appeals practice

Led by partner Edward Reines in the Silicon Valley office, Weil is regularly called upon to handle its clients’ most important patent litigation appeals before the Federal Circuit.

Selected Representations

Antitrust – C&S Wholesale Grocers

Securities – Willis

Antitrust – Farmers Insurance

Trade Secrets - The Dow Chemical Company

Securities – Sanofi

Copyright - The Walt Disney Company

Investigations – Marsh & McLennan

Patent – Illumina

False Claims Act - Schindler Elevator Corp.

Mass Torts - Port Authority of New York and New Jersey

International Law - European Union

Music Licensing - DMX

Key Contacts

Mark Perry

Mark Perry


Washington, D.C.

Gregory Silbert

Gregory Silbert


New York

Zachary Tripp

Zack Tripp


Washington, D.C.

Edward R. Reines

Edward R. Reines


Silicon Valley

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Recent Announcements

Weil is recognized as one of the top 25 firms nationwide for Appellate: Courts of Appeal and Appellate: Supreme Courts.

Legal 500 2021

Weil, Gotshal & Manges LLP's appellate group is adept at representing clients before all federal circuit courts of appeals.”

Legal 500 2020

Awards and Recognition, Speaking Engagements, Latest Thinking, Firm News & Announcements, Recent Announcements

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