A federal appeals court has upheld a New Jersey judge’s dismissal of a patent infringement suit against travel website Kayak.com.

The U.S. Court of Appeals for the Federal Circuit in an opinion dated Sept. 7 let stand a decision by the late U.S. District Judge Joseph Irenas that Kayak’s quote-generating software did not infringe a patent held by plaintiff Source Search Technologies, or SST. The appeals court ruling also lets stand the finding that the case was “exceptional” and the award of $578,085 in legal fees to Kayak.