Department profile
WilmerHale

Intellectual Property: Patent Litigation

USA Guide 2026 : California

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WilmerHale

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About

Provided by WilmerHale

IP Litigation

Clients rely on our globally recognized Intellectual Property Litigation Practice to provide high-quality and innovative solutions to the most complex legal and business issues. We have helped companies defend their interests in jurisdictions across the United States and internationally. Our lawyers have tried cases in federal district courts throughout the United States, and we appear frequently in the top jurisdictions for patent cases, including the District of Delaware, the Central, Northern, and Southern Districts of California, the Eastern and Western Districts of Texas, as well as in the International Trade Commission. 

To learn more, visit: https://www.wilmerhale.com/en/solutions/intellectual-property-litigation

IP

Clients depend on us to understand how intellectual property relates to their business, and to use that knowledge to help them fully realize the value of their intellectual property. We offer full-service IP coverage across industries, from technology, telecommunications, retail and media to pharmaceuticals and medical devices.

To learn more, visit: https://www.wilmerhale.com/intellectual_property/

Chambers Review

Provided by Chambers

Intellectual Property: Patent Litigation - California

Band 2

What the Team is Known For
WilmerHale is highlighted for its abilities handling hi-tech patent infringement proceedings and ANDA cases. It is an effective counsel for inter partes reviews, licensing disputes and copyright, trademark and trade secret protection. The team is additionally skilled in representation for PTAB and ITC proceedings.
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Work Highlights

Provided by Chambers

  • WilmerHale represented Anthropic in copyright litigation brought by music publishers, including Concord, Universal and ABKCO.

Strengths

Provided by Chambers

  • We trust WilmerHale with our high-stakes litigation cases. They have extremely strong trial lawyers.

    Intellectual Property: Patent Litigation respondentUSA

  • From top to bottom, from senior partner to junior associate, WilmerHale has knowledgeable, hard-working attorneys.

    Intellectual Property: Patent Litigation respondentUSA

  • WilmerHale does a really good job at trial.

    Intellectual Property: Patent Litigation respondentUSA

Notable Practitioners

Provided by Chambers

  • Mark D Selwyn
    Mark D Selwyn

    Mark D Selwyn

    Mark Selwyn offers a wealth of experience litigating patent cases for clients throughout the tech industry and regularly undertakes cases with cross-border elements.

    • Mark Selwyn is hands down one of the hardest working attorneys in the business. The service he provides is unmatched.

      Intellectual Property: Patent Litigation respondentUSA

    • Mark Selwyn is an excellent lawyer and fantastic to work with. He is deeply knowledgeable of patent law and is a highly skilled litigator. I very much appreciate his sound, practical and strategic approach to handling litigation, especially when it comes to nuisance and patent troll matters.

      Intellectual Property: Patent Litigation respondentUSA
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  • Sonal N Mehta
    Sonal N Mehta

    Sonal N Mehta

    Sonal Mehta is a noted patent litigator who maintains a high-profile tech-sector client base which includes prominent video game and software developers.

    • Sonal does sophisticated litigation. She is very strategic and respected by courts.

      Intellectual Property: Patent Litigation respondentUSA
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Ranked Individuals at WilmerHale (2)

California

Members

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