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Brian’s practice focuses on all aspects of intellectual property law and counseling.

His practice includes acting as first-chair counsel for many patent and IP litigations involving a wide variety of subject matters including pharmaceuticals, biotechnology, medical devices, and artificial intelligence. Brian is often the lead investigator for IP diligence and IP transaction advice on corporate deals involving pharmaceutical, biologic, and medical products, among many areas, involving billions of dollars in sales. Brian also manages patent portfolios and patent prosecution in a variety of subject matters areas, including pharmaceuticals, biologics and, medical devices.

Brian is one of only a handful of registered patent attorneys in the U.S. who also has served as an Assistant U.S. Attorney. He served in the United States Department of Justice, Criminal Division, in New York City. There he received numerous awards and commendations for his work as a Federal Prosecutor. Brian served as First Chair in many high profile federal criminal trials and federal grand jury investigations in conjunction with the FBI, DEA, Secret Service, U.S. Customs, NYPD, and many other law enforcement agencies. Brian has maintained many of his government contacts and recently has worked with FBI units focused on the theft of U.S. trade secrets and intellectual property.

One of Brian’s investigations on corruption in the NYPD led to several felony convictions of corrupt NYPD officers and was featured on the front page of the New York Times and in other media. This investigation was also the basis for a successful Hollywood movie.

Brian has substantial expertise in the Hatch-Waxman and related laws applicable to patents directed to pharmaceutical and biologic products. Brian regularly litigates these cases and counsels clients on the impact of the Hatch-Waxman listings, exclusivities, and other provisions on their patents and products. He served as First Chair for both patent owners and generic drug companies in numerous cases involving pharmaceutical products with cumulative sales substantially over $100 billion.

As a registered patent attorney, Brian has expertise in patent prosecution, IP diligence, and related transactions, such as transfers of patents and licensing matters. Brian manages the prosecution of hundreds of patent applications in the United States and abroad. He regularly conducts thorough investigations, including “War Games” of IP rights for multiple financial companies and operating companies seeking to make an acquisition, provide financing, or make other IP transactions. He reviews the relative strengths of patent, trademark, and other rights to protect markets and assess impact on future product income and royalty streams. He reviews ongoing and threatened patent litigation to assess how the litigation may impact market exclusivity. Brian scrutinizes foreign litigation, USPTO proceedings, and FDA Citizen Petitions to provide a complete picture of the risks and benefits of an IP purchase or transaction. Our clients rely on Brian’s expertise to conduct due diligence analysis for pharmaceutical, biologic, computer, electrical, and business method assets. In 2023, Brian was individually ranked in Patexia’s 2023 ANDA Litigation Intelligence Report.

Brian was previously a partner at Sonnenschein Nath & Rosenthal, now Dentons, in New York City and Budd Larner in Short Hills, NJ. Additionally, Brian worked at IP boutique Darby & Darby and Marks & Murase (now part of Mogan Lewis), which are both in New York City.

Location
  • Seaport West
    155 Seaport Boulevard
    Boston, MA 02210
Education
  • Boston College, B.A. in Mathematics
  • St. John's University
Bar Admissions
  • New York, New York State Bar Association
  • New Jersey, New Jersey State Bar Association
  • Massachusetts, Massachusetts Bar Association
Affiliations
  • New Jersey Intellectual Property Law Association - Member
Court Admissions
  • Various federal trial and appellate courts around the country
  • U.S. Patent and Trademark Office
  • U.S. Court of Appeals for the Second Circuit
  • U.S. Court of Appeals for the Federal Circuit

Recognized in The Best Lawyers in America® 2025 for work in:
  • Patent Law
Awards:
  • Brian Moriarty was individually ranked in the ANDA Litigation Intelligence Report for his top performance. The Report reviews the activity and performance of attorneys and law firms for Hatch-Waxman litigation. Researchers evaluated over 200 law firms and nearly 1,500 attorneys and analyzed the data from 1,428 ANDA cases filed from 2018 to 2023.

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Publications

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