United States Supreme Court

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eBay Inc. v. MercExchange, L.L.C., 05-130

The traditional four-factor test applied by courts of equity when considering whether to award permanent injunctive relief to a prevailing plaintiff applies to disputes arising under the Patent Act. A judgment reversing the denial of a motion for permanent injunctive relief in a patent infringement case against eBay is vacated where neither court below correctly applied the traditional four-factor framework that governs an award of injunctive relief.

Appellate Information

  • Decided 05/15/2006
  • Published 05/15/2006



  • United States Supreme Court