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Key contacts
Managing Partner: Anjan Sahni
Chair, Litigation/Controversy Department: Ronald Machen
Quick facts
Partners

271

Other qualified practitioners

949

Total number of lawyers

1220

Practitioners (worldwide)

1220

Key practice areas
Intellectual property
Trade mark
Patent
Dispute resolution
Firm overview

WilmerHale is a leading, full-service international law firm with more than 1,200 lawyers located throughout 12 offices in the United States and Europe. The firm's lawyers work at the intersection of government, technology and business, and are committed to guiding principles of:

  • providing quality, world-class legal and client services;
  • promoting a culture of opportunity and inclusiveness;
  • fostering an environment that promotes an entrepreneurial spirit, collaboration and collegiality by drawing on the exceptional talents and varied experience of our lawyers;
  • encouraging lawyers and staff to perform public service and give back to the community through pro bono work, government service, service to the bar, teaching, and supporting public institutions and charitable organizations; and
  • hiring and retaining exceptionally talented lawyers who possess the common trait of outstanding academic and personal achievements.

Litigation:

Our lawyers have played an integral role in many of the most significant cases across the globe over the past several years, including internal and governmental investigations; patent, copyright and trademark cases; regulatory, government and public policy disputes; securities class action lawsuits; and federal and state appellate cases. Clients rely on our strong understanding of their industries and business goals, pragmatic and clear advice—even in the midst of complicated issues, complex legal and regulatory regimes, and high-stakes decisions—and ability to deliver practical solutions to real-world problems. Our cases and achievements cut across the litigation spectrum, and we have experience across industries, including aviation; bankruptcy and commercial; communications; defense and national security; government contracts; energy, environment and natural resources; financial institutions; labor and employment; technology; and trade. Learn more about our litigation practices at https://www.wilmerhale.com/en/solutions/litigation

Address:
7 World Trade Center
250 Greenwich Street
New York, NY10007
Tel:+1 202 663 6000 Email:Contact Us Web Address:https://www.wilmerhale.com/en
Rankings published in 2025
Dispute resolution
Highly Recommended
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Linked Reviews
Dispute Resolution

With a network of international and domestic offices, WilmerHale has built a reputation as a global powerhouse. Nationally, the firm’s original mainstay in Boston continues to secure near-unanimous recognition in litigation, and the New York, DC and California offices have further bolstered the firm’s top-tier standing. It is lauded for its litigation capabilities nationwide, particularly antitrust, white-collar, securities and appellate, as well as intellectual property, one of the firm’s most notable practices.

Boston-based trial lawyer Bill Lee is of the most accomplished litigators in intellectual property. He continues to add to his enviable list of milestone patent wins, which have earned him a long-standing reputation in the practice area. In these high-stakes cases, he is well known for his distinguishing ability to translate his encyclopedic knowledge into comprehensive arguments that sway judges and juries. Lee and Denver’s Mary “Mindy” Sooter obtained a damages-less win for Comcast in a patent infringement lawsuit brought by NextStep. Last September in Delaware, the federal jury found in favor of the client on two of the challenged patents, and returned a “doctrine of equivalents” infringement verdict on the last patent. Sooter and Lee secured the zero-dollar victory with a granted motion to preclude the plaintiff’s damages case.

In the appellate arena, Lee also obtained positive results working with appellate expert Seth Waxman of the DC office. The duo represented Abbott Laboratories and AbbVie against the Federal Trade Commission (FTC) before the Court of Appeals for the Third Circuit. The FTC filed a case alleging that the lawsuits filed by AbbVie against Teva and Perrigo were shams, thus violating the FTC Act. The District Court granted summary judgment in favor of the FTC, which AbbVie appealed. The Third Circuit in parts affirmed, reversed, and vacated the District Court’s decision. Notably, the appellate court held that its lawsuit against Teva was not a sham, and the court vacated the disgorgement award. On the Perrigo matter, the Third Circuit upheld the District Court decision that the suit was objectively baseless, which Lee and Waxman challenged in a petition for certiorari that was denied. However, in a complete victory, the FTC dropped the entire case.

Waxman serves as chair of the firm’s appellate and Supreme Court litigation practice, with, as one peer notes, “an army of talent behind him”. Such talent includes Noah Levine, who represented the Federal National Mortgage Association (Fannie Mae) in a putative class action challenging non-judicial foreclosures in Rhode Island, arguing that the client and co-defendant violated the Due Process Clause as plaintiffs also argued that the defendants should be considered government actors. The District Court rejected both arguments, dismissing the complaints. On appeal, the First Circuit upheld the decision, securing a win for the client.

In New York, commercial litigator Hallie Levin obtained a win for T-Mobile in a five-day bench trial before the Delaware Court of Chancery. The trial arose from a settlement agreement between T-Mobile and Cox Communications that concluded a patent infringement case. In the agreement, Cox agreed that should it begin offering retail customers wireless services, it would be done in accordance with a wholesale wireless agreement with Sprint, which T-Mobile acquired. Cox and another mobile network later entered into a wholesale wireless agreement, and sued the client last January, arguing that the provision was unenforceable. Acting on behalf of T-Mobile, Levin filed counterclaims and requested an injunction to enforce the exclusivity obligation. The District Court found that Cox had breached the agreement and the provision was enforceable. The court issued an injunction preventing Cox from offering mobile services with any other operator.

On the West Coast, Sonal Mehta is continuously recognized as a top-tier litigator in the IP space, especially for her role representing titans of the life sciences and technology industry. Recently, she represented Ionpath, a venture-backed start-up by three Stanford professors who sought to commercialize their technology for biological tissue analysis, against competitor Fluidigm. The Northern District of California, in an accelerated patent “showdown” procedure, ruled Ionpath did not infringe the “showdown” claims. After the decision, Fluidigm dismissed its interference with contract claims, and later the plaintiff dismissed the rest of the claims in its appeal. The matter closed confidentially.

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