Department profile
Weil, Gotshal & Manges LLP

Appellate Law

USA Guide 2026 : USA - Nationwide

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Weil, Gotshal & Manges LLP

Rankings

Chambers Review

Provided by Chambers

Appellate Law - USA - Nationwide

Band 4

What the Team is Known For
Weil's appellate practice makes regular appearances before the Supreme Court and state and federal courts of appeal in complex and high-stakes litigation matters. Its wide-ranging skill set covers areas including bankruptcy, intellectual property and securities law.
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Work Highlights

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  • Weil Gotshal represented Altria Group before the US Court of Appeals for the Federal Circuit in a patent infringement dispute involving e‑vapor device technology. The court affirmed a jury verdict and damages award against a competitor, upholding findings of patent validity and infringement as well as an ongoing royalty.

Strengths

Provided by Chambers

  • Their expertise, practical guidance and detailed approach to addressing the complex matter they are handling has been invaluable.

    Appellate Law respondentUSA

  • They never overbill, they never overstaff, they're very disciplined and their work product is as high quality as I've ever seen. I run out of adjectives for Weil.

    Appellate Law respondentUSA

  • They're the firm to call when you get a shocking judgment. We were lucky to have them at our side in terms of shaping the best appeal and thinking three steps ahead.

    Appellate Law respondentUSA

  • The team is organized, well staffed and extremely smart. They provided huge value – they have the relevant experience and teams behind them to work toward any goal.

    Appellate Law respondentUSA

  • They have unmatched ability to synthesize complex matters into readable prose that judges understand.

    Appellate Law respondentUSA

Notable Practitioners

Provided by Chambers

  • Mark A Perry
    Mark A Perry

    Mark A Perry

    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.

    • He's not only a good general Supreme Court practitioner, but he is also the most experienced on patent appeals.

      Appellate Law respondentUSA

    • 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 Law respondentUSA

    • 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 Law respondentUSA
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  • Zachary Tripp
    Zachary Tripp

    Zachary Tripp

    Zachary Tripp co-heads the firm's appellate practice and brings a wealth of experience to bear for clients facing significant litigation, with experience arguing appeals concerning bankruptcy, intellectual property and financial services regulation.

    • He is really very creative and very practical. Sometimes, appeals can be heavy, but he simplifies it well.

      Appellate Law respondentUSA

    • He's an excellent and savvy attorney.

      Appellate Law respondentUSA
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Ranked Individuals at Weil, Gotshal & Manges LLP (2)

USA - Nationwide

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