United States v. E. I. Du Pont de Nemours & Co.

353 U.S. 586 · Decided June 3, 1957 · Supreme Court of the United States

At a glance

United States v. E. I. Du Pont de Nemours & Co. was decided on June 3, 1957 by a vote of 4–2. The Court reversed the lower court's decision and remanded the case. Justice William J. Brennan Jr. wrote the opinion of the Court. SCDB classifies its main issue as “Antitrust” in the Economic Activity area.

Read the opinion

• CourtListener (Free Law Project) — opinion text
• Library of Congress — official U.S. Reports scan

Case details

How the Justices voted

Did not participate: Tom C. Clark, John M. Harlan II, Charles E. Whittaker.

Full case caption

United States v. E. I. Du Pont de Nemours & Co. et al.

SCDB identifiers: case 1956-097, docket 1956-097-01.

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Cases on the same legal provision: Clayton Act

• Moog Industries, Inc. v. Federal Trade Commission
  355 U.S. 411Decided January 27, 19588–0Per curiam
• United States v. E. I. Du Pont de Nemours & Co.
  366 U.S. 316Decided May 22, 19614–3William J. Brennan Jr.
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  374 U.S. 321Decided June 17, 19636–2William J. Brennan Jr.
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  376 U.S. 651Decided April 6, 19647–1William O. Douglas
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  377 U.S. 271Decided June 1, 19646–3William O. Douglas
• United States v. Penn-Olin Chemical Co.
  378 U.S. 158Decided June 22, 19647–2Tom C. Clark

Same Term, same area (Economic Activity)

• Thompson v. Coastal Oil Co.
  352 U.S. 862Decided October 15, 19565–4Per curiam
• Holophane Co., Inc. v. United States.
  352 U.S. 903Decided November 13, 19568–0Per curiam
• United States v. Bergh
  352 U.S. 40Decided November 19, 19565–3Tom C. Clark
• Massachusetts Bonding & Insurance Co. v. United States
  352 U.S. 128Decided December 10, 19565–4William O. Douglas
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  352 U.S. 158Decided December 17, 19566–2Stanley F. Reed
• United States v. Howard
  352 U.S. 212Decided January 14, 19579–0Stanley F. Reed

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error