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

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, 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.

Highly effective 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 routinely litigate questions of first impression and novel legal theories, interpreting complex statutes and regulations in specialized and 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

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

Steven A. Reiss

Steven A. Reiss


New York

Gregory Silbert

Gregory Silbert


New York

Edward R. Reines

Edward R. Reines


Silicon Valley

Shortcut Links

Recent Announcement

Weil is currently recognized as one of the top 25 firms nationwide for appellate litigation.

Legal 500

Weil secured affirmance in the Second Circuit of a pair of earlier victories on behalf of DMX Inc. against ASCAP and BMI in a landmark ruling that could change the way music performance rights are licensed, according to

The AmLaw Litigation Daily.

As reported in The Wall Street Journal, Justice Sotomayor described Weil’s amicus curiae brief on behalf of the European Union in Kiobel v. Royal Dutch Petroleum, as a "simple set of rules...clearly defined...that...makes sense", challenging advocates to explain why they disagreed with our client’s position.

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

Awards and Recognition

Speaking Engagements

View all