DuPont v. Masland

244 U.S. 100 (1917)

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DuPont v. Masland

United States Supreme Court
244 U.S. 100 (1917)

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Facts

Walter Masland (defendant) wanted to manufacture artificial leather. E.I. du Pont de Nemours Powder Company (DuPont) (plaintiff) sued, alleging that Masland intended to use DuPont’s confidential trade secrets to do so. Masland denied using DuPont’s trade secrets and argued that much of the information DuPont claimed as a trade secret was well known within the artificial-leather industry. The United States Supreme Court considered what Masland could share about the alleged trade secrets in his defense in court.

Rule of Law

Issue

Holding and Reasoning (Holmes. J.)

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