Atty. John P. Breen
John P. Breen is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law.
Profile Summary
About John P. Breen at a glance
John P. Breen is a ip attorney based in Indianapolis, Indiana, practicing at Barnes & Thornburg LLP. Educated at Indiana University Maurer School of Law (J.D., 1993). Recognitions include Best Lawyers in America — Patent Law (2026). Serves clients in Indianapolis, IN and the surrounding metropolitan area.
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About
- John P. Breen is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law
- John P., who practices law in Indianapolis, Indiana, has been recognized since 2025
- This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John P. is held by other top lawyers in the same geographic and legal practice area
Practice Areas Explained
John P. Breen's Areas of Practice
Each practice area below reflects the types of cases John P. Breen handles, with a brief overview of what that area of law covers.
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
John P. Breen is one of 94,505 ip attorneys indexed nationally. Browse ip attorneys in Indiana →
Jurisdictional Context
Why local counsel matters in Indiana
Practicing law in Indiana. Legal matters in Indiana are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Indianapolis are typically filed in the local municipal court or the appropriate Indiana state district court, depending on subject matter and amount in controversy. An attorney licensed in Indiana brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Indiana courts without local counsel or pro hac vice admission.
Looking for additional Indiana attorneys? Browse all attorneys in Indianapolis or all attorneys in Indiana.
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