About Us
Our History
Founded in 1987, Dilworth & Barrese, LLP is a full-service intellectual property law firm specializing in patent, trademark, trade secret, copyright and unfair competition law, including practice before the United States Patent and Trademark Office and litigation in the United States federal and state courts.

100+
Copyrights
232+
Patents Filed
720+
Trademarks
About us
Your Trusted Partner in Patent and Trademark Law
We counsel our clients regarding all aspects of intellectual property law including patentability and infringement analyses, due diligence investigations, licensing, trade secrets and unfair competition. Our practice encompasses patent prosecution, patent litigation, patent interferences, patent reexaminations and reissues, trademark registration, trademark litigation, trademark oppositions, trademark cancellations, copyright registration and copyright litigation.
Our attorneys are licensed to practice in the United States Patent and Trademark Office and have expertise in the areas of biotechnology, chemicals, computer science, pharmaceutical, electrical (electronics), and mechanical arts. These groups are highly experienced and provide our clients with an intimate knowledge of intellectual property concerns which are common to those respective areas of technology. This structure provides our clients with the best possible representation.
We represent our clients from a balanced perspective–as aggressive advocates defending their legal rights, and as trusted counselors, finding creative national and worldwide solutions to their intellectual property questions and problems, in an effort to give our clients a competitive advantage. Dilworth & Barrese, LLP services clients from around the world.



Our team Attorneys
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Partner
STEPHEN R. BARRESE
He is focuses his practice in the areas of trademarks, unfair competition, copyrights and internet-related matters including trademark research.
Partner
MICHAEL J. MUSELLA
He is a registered Patent Attorney and has over 15 years of experience practicing before the United States Patent and Trademark Office.
Partner
CARLA L. GANNON
She is a registered Patent Attorney with substantial experience is patent preparation and prosecution, designing and managing IP portfolios, opinion.
Partner
ROCCO S. BARRESE
He has extensive experience in all phases of patent and trademark prosecution and related matters including opinions, interferences, and litigation.
Partner
MICHAEL J. MUSELLA
Experienced in all phases of chemical patent prosecution, including interference practice and patent litigation at both the trial and appellate levels.
Patent Attorney
CARLA L. GANNON
He is focuses his practice on detergents, soaps, cleaning products, personal care products including cosmetics, pharmaceuticals, foods and confection.
Patent Attorney
MATTHEW W. SIEGAL
He has experienced in all phases of patent and trademark prosecution, including due diligence, opinions, inter partes reexaminations and licensing.
Patent Attorney
BARBARA B. COURTNEY
She began her career as an electrical engineer before becoming a patent attorney. Her entire career has been involved with Silicon Valley high.
Patent Attorney
MICHAEL A. SCATURRO
He is experienced in all phases of patent prosecution. Mr. Scaturro focuses his practice in the fields of telecommunications systems.








