WASHINGTON (August 2025) - Buchanan Ingersoll & Rooney continues to strategically expand its intellectual property litigation capabilities with the addition of Louis Mastriani in the Washington, D.C. office. Mastriani, joining as a shareholder, will also be the ITC Section 337 practice group leader. ITC Section 337 law addresses imported products and their impact on domestic industries.
Mastriani counsels and assists clients in domestic and worldwide licensing and enforcement programs for intellectual property rights, with an emphasis on high-technology patent portfolios. With more than 40 years of experience, he has been involved in unfair competition investigations before the International Trade Commission (ITC) under Section 337, and intellectual property litigation in federal district courts. He also has represented clients in numerous antidumping and countervailing duty investigations at the ITC and the U.S. Department of Commerce, and cases before the U.S. Court of International Trade and the U.S. Court of Appeals for the Federal Circuit.
"Lou is a highly experienced ITC litigator and seasoned Section 337 attorney. His leadership is now a cornerstone of Buchanan's full-service IP Section, and we are excited to have him spearhead the growth of our Section 337 work," said Jonathan Spadt, shareholder and Intellectual Property section co-chair. "Alongside our IP experts, he will work diligently with our domestic and global clientele to prevent unfair competition in U.S. markets. As a section, we are committed to setting new standards in client service and thought leadership within the IP arena."
"Lou is a distinguished Intellectual Property litigator," said Lloyd Smith, shareholder and Intellectual Property section co-chair. "We are excited to welcome him to Buchanan, where his experience navigating complex disputes will not only enhance our IP litigation practice but also drive innovative strategies that anticipate and address the evolving needs of our clients in this dynamic landscape."
Dan Pickard, shareholder and International Trade & National Security practice group leader, added, "Expanding Section 337 litigation at our firm is a natural extension of our antidumping and countervailing duty work. It reinforces our ability to protect U.S. manufacturers from unfair imports while leveraging our deep understanding of global supply chains and regulatory enforcement. With Lou's arrival, we offer additional legal strategies, and together, enhanced value to our clients."
Mastriani has also been involved over the years in interacting on behalf of domestic and foreign clients with U.S. Customs in matters involving the administration and enforcement of ITC exclusion orders, protection of intellectual property rights, as well as valuation and classification matters, including appeals to the U.S. Court of International Trade and the U.S. Court of Appeals for the Federal Circuit. He also counsels domestic and international clients with respect to compliance with export controls and sanctions protocols, as well as representing them in connection with investigatory and enforcement proceedings.
"Buchanan's ability to integrate Section 337 and international trade disciplines is a unique opportunity that strategically ties intellectual property enforcement and global trade strategy together," said Mastriani. "I look forward to working together to grow the practice and support clients in their business objectives, while protecting their intellectual property and limiting unfair trade practices that hurt domestic industries."
Prior to entering private practice, Mastriani served as legal counsel to an ITC Commissioner before becoming a senior investigative attorney in the Office of Legal Services (currently known as the Office of Unfair Import Investigations). As a senior ITC investigative attorney, he assisted in revising and drafting the Commission's Rules of Practice and Procedure with respect to Section 337 investigations. While at the ITC, he also litigated numerous Section 337 investigations on behalf of the public interest involving patent, non-patent, and antitrust issues, including self-initiated Section 603 investigations.
Mastriani is a frequent lecturer and published author on international trade issues and intellectual property protection. He has been routinely recognized as a leader in IP litigation by IP Stars, Chambers Global, Chambers USA, The Legal 500, Patexia, and Super Lawyers.