LAWYER PROFILE

Mark A Perry

USA 2026

Weil, Gotshal & Manges LLP

Ranked in 2 practice areas

Intellectual Property: Appellate

USA - Nationwide

4 years ranked

Appellate Law

USA - Nationwide

18 years ranked

About

Provided by Weil, Gotshal & Manges LLP

USA

Practice Areas

Mark A. Perry, Co-Head of Weil’s Appeals and Strategic Counseling practice, is a veteran U.S. Supreme Court advocate, commercial litigator, and legal strategist. He has nearly 30 years of experience representing clients in class actions and other complex commercial disputes, including securities, antitrust, employment, and patent cases, and he has won a number of landmark decision across diverse areas of business litigation. He focuses on navigating clients through the appellate aspects of such litigation, both in trial and appellate courts.

Career

Before joining Weil, Mark was a partner at another international law firm, where he served as Co-Chair of its nationwide Appellate and Constitutional Law Practice. Earlier, he served as an attorney in the Office of the Solicitor General, and also was a law clerk to Justice Sandra Day O’Connor of the Supreme Court of the United States, and to Judge Alex Kozinski of the Ninth Circuit. He received his JD with high honors from University of Chicago Law School.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Intellectual Property: Appellate - USA - Nationwide

Band 1

Individual Editorial

Mark Perry is cohead of Weil's appellate litigation practice. He has nearly 30 years of experience representing clients in complex appellate matters, with a strong focus on high stakes patent appeals.

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Appellate Law - USA - Nationwide

Band 2

Individual Editorial

Mark Perry is an experienced Supreme Court advocate and also offers a wealth of experience in the federal courts of appeals and district courts. He receives particular praise for his intellectual property expertise.

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Strengths

Provided by Chambers

Mark is a top appellate advocate.
Intellectual Property: AppellateChambers Guide to the USA
He's not only a good general Supreme Court practitioner, but he is also the most experienced on patent appeals.
Appellate LawChambers Guide to the USA
He's one of the premier appellate lawyers in IP and technology. His work resulted in excellent outcomes. He was the architect and made the right calls.
Appellate LawChambers Guide to the USA
He's a giant of the Bar for patent litigation. He's smart, confident and down to earth. He provides very sophisticated legal analysis and good business judgment.
Appellate LawChambers Guide to the USA