Jeff Castellano

Jeff has litigated in federal district court, the United States International Trade Commission, and in the Delaware state courts. He also advises startup and early-stage companies on IP and other commercial matters.

Jeff has extensive experience in all aspects of litigation through and including trial. He has litigated cases in federal courts in Delaware, California, Texas, Pennsylvania, and at the International Trade Commission, and has also appeared as lead counsel for his clients in cases on appeal to the Federal Circuit.

Both as lead counsel and in collaboration with other law firms, Jeff has managed substantial portions of patent cases in the areas of e-commerce, pharmaceuticals, telecommunications, medical equipment, petrochemicals, apparel, and consumer electronics. He has also worked on cases in other areas of IP and non-IP law, including trademark infringement, unfair competition, breach of contract, trade secret misappropriation, and breach of fiduciary duty.

In his counseling practice, Jeff assists startup and early-stage companies in developing IP strategies, preparing for and responding to outside threats, and following best practices for protection of business-critical information.

Jeff has also helped his clients negotiate complex licensing and settlement deals, in the context of court-assisted mediation and business-to-business transactions. He has drafted and negotiated settlement, licensing, and royalty agreements involving software, patents, and other IP assets.

Jeff regularly represents women and children pro bono in Delaware Family Court. He also represents veterans in appeals to the U.S. Court of Appeals for Veterans Claims. He is a co-founder and a current director of the Grafton Street Fund, a charitable organization that seeks out, promotes, and supports innovative and successful non-profit organizations, and is also a charter member of the Commission on Early Education and the Economy, a group of business leaders that advocates for quality early childhood education in Delaware.