United States v. Singer Manufacturing Co.

Background

The United States sued Singer Manufacturing Company, alleging Singer combined with two foreign makers — Gegauf of Switzerland and Vigorelli of Italy — to restrain competition in the U.S. market for automatic multicam zigzag household sewing machines. Singer was the only large U.S. producer and held a dominant share of the market while Japanese imports were rapidly growing. After a long trial the District Court dismissed the Government’s antitrust claims; the United States appealed and the Supreme Court granted review.

Reasoning

The central question was whether Singer’s series of patent deals, cross-licenses, the acquisition of Gegauf’s U.S. patent rights, and steps to enforce those patents together showed a concerted plan to exclude Japanese competitors. The Court examined the parties’ course of dealings — including agreements to obtain broad patent claims, Singer’s assignment of Gegauf’s U.S. application, and Singer’s later action before the Tariff Commission — and concluded those acts amounted to a conspiracy in restraint of trade under the Sherman Act. The Court therefore reversed the dismissal and sent the case back for an appropriate antitrust decree.

Real world impact

The decision limits use of patent agreements and assignments as tools for coordinated exclusion of foreign importers. It affects importers, foreign manufacturers, and dominant domestic firms that might use patent aggregation to shut out competitors. The Court noted that any change in overall economic policy about protecting domestic industry must come from Congress or the Executive, not the courts.

Dissents or concurrances

Justice White concurred, emphasizing two separate legal harms—conspiracy to exclude and collusive interference settlement—and said either would justify relief. Justice Harlan dissented, arguing the majority improperly overturned the District Court’s factual findings.