Atty. Steven Horn
Steven Horn focuses his practice on intellectual property and appellate litigation. He has represented technology and life sciences clients in patent disputes involving a variety of technologies, including microprocessors, smartphones and pharmaceuticals.
Profile Summary
About Steven Horn at a glance
Steven Horn is a ip and appellate attorney based in Washington, District of Columbia, practicing at Wilmer Cutler Pickering Hale and Dorr LLP. Admitted to practice in District of Columbia, The District of Columbia Bar and Massachusetts, Massachusetts Bar Association. Educated at Harvard University (J.D., 2014) and Yale University (BS, 2010). Recognitions include Best Lawyers in America — Appellate Practice (2026) and Best Lawyers in America — Litigation - Intellectual Property (2026). Serands clients in Washington, DC and the surrounding metropolitan area.
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About
- Steven Horn focuses his practice on intellectual property and appellate litigation
- He has represented technology and life sciences clients in patent disputes involving a variety of technologies, including microprocessors, smartphones and pharmaceuticals
- He has represented clients in US district courts, including as a member of multiple trial teams
- He has also represented clients in inter partes review proceedings before the Patent Trial and Appeal Board
- His appellate experience includes appeals in the United States Court of Appeals for the Federal Circuit, the United States Court of Appeals for the First Circuit, the United States Court of Appeals for the Ninth Circuit and the United States Supreme Court
Practice Areas Explained
Steven Horn's Areas of Practice
Each practice area below reflects the types of cases Steven Horn 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.
Steven Horn is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →
Appellate attorneys for civil and criminal appeals at state and federal court.
Steven Horn is one of 86,319 appellate attorneys indexed nationally. Browse appellate attorneys in District of Columbia →
Jurisdictional Context
Why local counsel matters in District of Columbia
Practicing law in District of Columbia. Legal matters in District of Columbia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Washington are typically filed in the local municipal court or the appropriate District of Columbia state district court, depending on subject matter and amount in controversy. An attorney licensed in District of Columbia 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 District of Columbia courts without local counsel or pro hac vice admission.
Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.
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