Jill Pietrini is a trademark and brand enforcement lawyer who represents companies, creators and rights holders in high-stakes litigation and disputes involving trademarks, false association, counterfeiting and related intellectual property claims, helping clients protect and enforce valuable brands, creative assets and public personas.
With more than 35 years of experience, Jill brings an integrated approach shaped by handling both trademark prosecution and litigation. That combination informs how she builds, enforces and defends trademark rights, allowing her to anticipate how registrations can be used or may be challenged and to use that knowledge in court and before the Trademark Trial and Appeal Board (TTAB).
Jill leads high-stakes matters as first-chair trial counsel, directing case strategy, examining key witnesses and experts, and delivering opening and closing arguments. Her work includes obtaining preliminary and permanent injunctions, defeating emergency relief such as temporary restraining orders and handling appeals throughout the U.S., often in disputes where brand value and business operations are immediately at risk of continuing infringement or are accused of infringement.
Cross-disciplinary disputes often define Jill’s practice, particularly where trademark claims intersect with copyright, rights of publicity, unfair competition and bankruptcy or insolvency issues. She represents clients in matters involving the use of names, images, titles and creative content, including disputes tied to entertainment properties, music, insurance, motion picture studios, e-commerce and consumer products, representing both rights holders enforcing IP rights and parties defending against infringement claims.
Clients rely on Jill both to enforce rights in active disputes and to manage and protect trademark portfolios over time, turning to her when litigation arises involving brands and copyrights she has registered. She also serves as a trademark expert witness, having been qualified and testified in federal court on issues relating to United States Patent and Trademark Office (USPTO) practice on multiple occasions.





