Skip to Main Content
Daniel J. Pereira, Ph.D. photo

Daniel Pereira, Ph.D., leverages his extensive background in science and law to deliver strategic patent portfolio management, client counseling, and litigation services. His practice spans chemical and petrochemical technologies, including catalysts, polymers, advanced materials, and industrial process technologies as well as metallurgy.

As a partner at Merchant's Washington D.C. Area office, Dan focuses on delivering comprehensive intellectual property services to innovators. He helps them navigate the legal landscape to protect their inventions and maximize the value of their IP assets. He is adept at handling intellectual property asset acquisitions, offering thorough risk assessment and due diligence to secure his client's future growth and success.

Dan has a strong background in proceedings before the Patent Trial and Appeal Board (PTAB), district court patent litigations, and appeals at the Federal Circuit. His proactive approach to pre-litigation counseling and litigation avoidance is highly valued by clients seeking to navigate the complex landscape of intellectual property law.

In addition to litigation and appeals, Dan provides critical support in licensing and contract negotiations, performing due diligence analyses, and assessing risks in intellectual property asset acquisition transactions for foreign and domestic clients, ranging from startups to established corporations. His focus on delivering tailored solutions underscores his commitment to advancing his clients' innovative endeavors.

Before becoming an attorney, Dan conducted cutting-edge research as a post-doctoral scientist at the Mount Sinai School of Medicine, focusing on neurodegeneration and the development of transgenic mouse models. His research in gene therapy and leukemia pathogenesis during his academic career informs his nuanced approach to IP law, making him an indispensable asset to those in the medical, pharmaceutical, and biotechnology sectors.

  • George Washington University Law School, J.D.
  • State University of New York at Stony Brook, Ph.D. Genetics
  • Earlham College, B.A. Biology
  • Virginia State Bar
  • U.S. Patent and Trademark Office

IAM Patent 1000 – The World’s Leading Patent Professionals – DC Metro Area, 2025-2026
The Best Lawyers in America (2024-2027)
IAM Patent 1000: The World’s Leading Patent Professionals – selected as Top Patent Professional (2020-2022)
Named as Rising Star by SuperLawyers (2014)