Inwood Laboratories, Inc., et al. v. Ives Laboratories, Inc.

Decided June 1, 1982. Sandra Day O'Connor delivered the opinion of the Court.

Docket 80-2182 · 456 U.S. 844 (1982) · Cited 1,327 times

We don’t yet publish a summary of this opinion — read the official text below for the Court’s holding and reasoning.

How the Justices voted

Decided 9–0.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• William R. Warner & Co. v. Eli Lilly & Co. · 265 U.S. 526 (1924)
• United States v. United States Gypsum Co. · 333 U.S. 364 (1948)
• Zenith Radio Corp. v. Hazeltine Research, Inc. · 395 U.S. 100 (1969)
• Sears, Roebuck & Co. v. Stiffel Co. · 376 U.S. 225 (1964)
• Kellogg Co. v. National Biscuit Co. · 305 U.S. 111 (1938)
• United States v. National Ass'n of Real Estate Boards · 339 U.S. 485 (1950)
• United States v. Singer Manufacturing Co. · 374 U.S. 174 (1963)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• Two Pesos, Inc. v. Taco Cabana, Inc. · 505 U.S. 763 (1992)
• Sony Corp. of America v. Universal City Studios, Inc. · 464 U.S. 417 (1984)
• Qualitex Co. v. Jacobson Products Co. · 514 U.S. 159 (1995)
• TrafFix Devices, Inc. v. Marketing Displays, Inc. · 532 U.S. 23 (2001)
• Anderson v. City of Bessemer City · 470 U.S. 564 (1985)
• Cooter & Gell v. Hartmarx Corp. · 496 U.S. 384 (1990)
• Bose Corp. v. Consumers Union of United States, Inc. · 466 U.S. 485 (1984)
• Thornburg v. Gingles · 478 U.S. 30 (1986)
• Jefferson Parish Hospital District No. 2 v. Hyde · 466 U.S. 2 (1984)
• Wal-Mart Stores, Inc. v. Samara Brothers, Inc. · 529 U.S. 205 (2000)
• Bonito Boats, Inc. v. Thunder Craft Boats, Inc. · 489 U.S. 141 (1989)
• Minnesota State Board for Community Colleges v. Knight · 465 U.S. 271 (1984)
• Dastar Corp. v. Twentieth Century Fox Film Corp. · 539 U.S. 23 (2003)
• Amadeo v. Zant · 486 U.S. 214 (1988)
• Alexander v. South Carolina State Conference of the NAACP · 602 U.S. 1 (2024)

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).