Atty. Daniel Richard O'Brien
Daniel Richard O'Brien is a lawyer practicing intellectual property litigation, complex commercial litigation, business torts and 9 other areas of law. Daniel received a B.A. degree from St.
Profile Summary
About Daniel Richard O'Brien at a glance
Daniel Richard O'Brien is a Partner based in Chicago, Illinois, practicing at Sidley Austin LLP. They have 45+ years of legal experience, licensed to practice since 1981. Their practice focuses on patent, contracts, trademark, copyright, and business. Admitted to practice in U.S. District Court, Northern District of Illinois (1981), U.S. District Court, Eastern District of Michigan (1982), U.S. District Court, Northern District of Illinois, including Trial Bar U.S. Court of Appeals, Secon (1986), and Illinois (2017). Educated at Georgetown University Law Center (J.D., 1979) and St. Louis University (B.A., 1976). Recognitions include AV Preeminent. Serands clients in Chicago, IL and the surrounding metropolitan area.
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About
- Daniel Richard O'Brien is a lawyer practicing intellectual property litigation, complex commercial litigation, business torts and 9 other areas of law
- Daniel received a B.A. degree from St. Louis University in 1976, and has been licensed for 45 years
- Daniel practices at Sidley Austin LLP in Chicago, IL
Practice Areas Explained
Daniel Richard O'Brien's Areas of Practice
Each practice area below reflects the types of cases Daniel Richard O'Brien handles, with a brief overview of what that area of law covers.
Daniel Richard O'Brien is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Illinois →
Daniel Richard O'Brien is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Illinois →
Daniel Richard O'Brien is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in Illinois →
Daniel Richard O'Brien is one of 17,495 copyright attorneys indexed nationally. Browse copyright attorneys in Illinois →
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Daniel Richard O'Brien is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →
Jurisdictional Context
Why local counsel matters in Illinois
Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Chicago are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Illinois courts without local counsel or pro hac vice admission.
Looking for additional Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.
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