Delaware, Pennsylvania and Virginia intellectual property lawyers ranked among top IP attorneys nationwide

PHILADELPHIA (June 2025) – Panitch Schwarze Belisario & Nadel LLP is pleased to announce that Managing Intellectual Property once again has named several of its intellectual property attorneys among its 2025 edition of IP Stars.

Firm partners Travis W. Bliss, Ph.D., Dennis J. Butler, and John D. Simmons have been named 2025 Patent Stars nationwide and in Delaware; partners Erin M. Dunston and Philip L. Hirschhorn have been named 2025 Patent Stars nationwide and in Pennsylvania; while partner Charles F. Wieland III has been named a 2025 Patent Star nationwide and in Virginia. Counsel Keith A. Jones has been named a 2025 Rising Star nationwide and in Pennsylvania. In addition, Managing Intellectual Property ranked Panitch Schwarze Belisario & Nadel LLP as Recommended in Intellectual Property Practice for 2025.

Managing Intellectual Property is a leading source of news and analysis on intellectual property issues worldwide. The IP Stars survey identifies leading intellectual property law firms and attorneys in various jurisdictions to provide deeper insight into the complex, vibrant IP legal arena worldwide. It is intended to be a valuable reference guide for in-house counsel at organizations that rely on intellectual property assets, from Fortune 500 companies to venture capitalists to innovative start-ups around the globe.

Assisting clients throughout the entire IP process, Bliss has extensive experience in the agriculture, horticulture, and cannabis/hemp industries, including a focus on novel plant varieties and transgenic plants. Butler concentrates his practice in mechanical technologies, including medical devices, polymer systems and materials, industrial equipment, automotive and agricultural equipment, and electro/mechanical devices.

Dunston focuses her practice on patent procurement, opinions, enforcement and portfolio strategy for clients primarily in the life sciences space, but she has handled projects on subject matter ranging from precipitated silica to vaccines to radiotherapy devices. An experienced trial lawyer specializing in patent litigation, including post-grant proceedings before the Patent Trial and Appeals Board of the USPTO, Hirschhorn has represented clients in traditional infringement/validity litigations as well as Hatch-Waxman (Paragraph IV) litigations and copyright, trademark/trade dress, and trade secret litigation.

Jones focuses his practice on IP and technology litigation, including patent, copyright, trademark, unfair competition, and trade secret cases in Federal District Courts nationwide and at the U.S. Court of Appeals for the Federal Circuit. An inventor, licensed engineer and IP attorney, Simmons focuses his practice on technologies including instrumentation, gaming devices, software, Internet security software/systems, industrial designs, semiconductors, and medical devices. With decades of experience in patent law,

Wieland protects IP rights through licensing, assignment and when necessary, litigation, for clients ranging from startups to Fortune 100 companies, both domestic and international.