Champion Spark Plug Co. v. Sanders et al., Doing Business as Perfect Recondition Spark Plug Co.
Decided April 28, 1947. William Orville Douglas delivered the opinion of the Court.
Docket 680 · 331 U.S. 125 (1947) · Cited 258 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.
Majority · 9
“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.
- Prestonettes, Inc. v. Coty · 264 U.S. 359 (1924)
- William R. Warner & Co. v. Eli Lilly & Co. · 265 U.S. 526 (1924)
- Federal Trade Commission v. Winsted Hosiery Co. · 258 U.S. 483 (1922)
- A. Bourjois & Co., Inc. v. Katzel · 260 U.S. 689 (1922)
- Old Dearborn Distributing Co. v. Seagram-Distillers Corp. · 299 U.S. 183 (1936)
- Mishawaka Rubber & Woolen Manufacturing Co. v. S. S. Kresge Co. · 316 U.S. 203 (1942)
- Jacob Siegel Co. v. Federal Trade Commission · 327 U.S. 608 (1946)
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 2026-08-15. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).