Akamai Loses Patent Ruling Against Limelight Networks

Akamai Technologies Inc. lost a court ruling in its four-year patent battle with Limelight Networks Inc. over software that speeds delivery of Web videos.

Akamai fell 3.3 percent in Nasdaq Stock Market trading after the U.S. Court of Appeals for the Federal Circuit in Washington said Limelight didn’t infringe a patent related to content delivery networks, or CDNs. U.S. District Judge Rya Zobel in Boston was correct to throw out a $45.5 million jury verdict that Akamai won in 2008, the appeals court said today.