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United States Federal Circuit


Exergen Corp. v. Wal-Mart Stores, Inc., 06-1491

In a patent infringement action involving infrared thermometers, district court judgment is affirmed in part and reversed in part where: 1) the court erred in finding that the claims in plaintiff's '205 patent were not anticipated by an earlier patent, and thus defendant cannot be liable for infringement of this patent; 2) plaintiff failed to provide substantial evidence to support the jury's finding that defendant's device directly infringed on plaintiff's '813 patent and actively induced infringement plaintiff's '685 patent; and 3) the court did not abuse its discretion in denying defendant's motion for leave to add allegations of inequitable conduct to its original answer, as its proposed allegations failed to satisfy the heightened pleading requirement of Federal Rule of Civil Procedure 9(b).

Appellate Information

  • Decided 08/04/2009
  • Published 08/04/2009

Judges

Court

  • United States Federal Circuit

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