James Breen is an associate in Goodwin’s Intellectual Property Litigation practice. Mr. Breen focuses his practice on representing clients in complex intellectual property litigation, including patent and post-grant invalidity proceedings, trade secret, trademark, and unfair competition matters.





Mr. Breen’s experience includes representing life science companies in Hatch-Waxman and BPCIA litigation. Mr. Breen also has experience representing tech and life science companies in disputes regarding trade secrets and trademarks. In particular, his litigation experience spans pre-suit investigations, discovery, motion practice, claim construction, pretrial proceedings, motions for preliminary injunction, and applications for temporary restraining orders.

Prior to joining Goodwin, he worked as a technical consultant in the patent prosecution group of an intellectual property law firm. During this time he assisted in the drafting and prosecution of U.S. and international patent applications, as well as in patent validity, freedom-to-operate, and due diligence investigations across a variety of technologies, including energy and wastewater treatment.

Mr. Breen also maintains an active pro bono practice. He has worked with organizations, such as Her Justice, to provide representation and advocacy for clients in custody and visitation proceedings.

Amicus Briefs

Professional Activities

Mr. Breen is a member of the New York Intellectual Property Law Association (NYIPLA).

While attending Manhattan College, Mr. Breen was a member of the Omega Chi Epsilon, Tau Beta Pi, and Epsilon Sigma Pi Honor Societies.

Professional Experience

Mr. Breen is a co-founder of Save Your City Clothing, a nonprofit organization committed to improving the education and well-being of school children in New York City.


Mr. Breen is a recipient of the Archibald R. Murray Public Service Award.

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J.D., Intellectual Property, 2016
Fordham University
M.S., Chemical Engineering, 2013
Manhattan College
B.S., Chemical Engineering, 2012
Manhattan College
(magna cum laude)



New York
U.S. Patent and Trademark Office (USPTO)


U.S. District Court for the Southern District of New York
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Our clients rely on us for world-class advisory services, counsel on complex transactional work and high-stakes litigation. Specializing in matters involving the financial, life sciences, private equity, real estate, and technology industries, we use a collaborative, cross-disciplinary approach to resolve our clients’ most challenging issues. To find out more, please contact us.

Unsere Kunden verlassen sich auf unsere erstklassige Beratung, vor allem im Hinblick auf komplexe Transaktionen und High-Stakes-Prozesse. Spezialisiert auf Angelegenheiten der Finanz-, Life-Sciences-, Private-Equity-, Immobilien-und Technologie-Branchen, verwenden wir einen kooperativen und interdisziplinären Ansatz, um Fragen unserer Kunden auch in extremen Spezialsituationen einer Lösung zuzuführen. Sie wollen mehr erfahren? Kontaktieren Sie uns gerne.

Nos équipes interviennent aux côtés de nos clients, industriels, fonds d’investissement, startups, institutions financières et dirigeants, dans le cadre de transactions et de contentieux complexes, et apportent des conseils de tout premier plan dans les secteurs financiers, des Sciences de la Vie, du Private Equity, de l’immobilier et des technologies. Nous traitons les dossiers juridiques de manière intègre, ingénieuse, souple et audacieuse pour répondre efficacement aux enjeux propres à chacun de nos clients, quels que soient la taille de l’opération et le secteur d’activité. Pour en savoir plus, contactez-nous.


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