The U.S. Court of Appeals for the Federal Circuit ruled Monday that Limelight Networks did not infringe on a patent owned by fellow network services company Akamai Technologies, upholding an earlier ruling.
Akamai, based in Cambridge, Mass., provides security to websites while Limelight, based in Tempe, Az., provides technology and services that help media companies stream audio and video online.
Akamai had accused Limelight of violating a content-delivery patent. Although a jury found Limelight guilty in 2008, awarding Akamai $45 million, the decision was reversed by a District Court the following year.
"This ruling affirms that Limelight Networks respects the intellectual property of others, and that our growth and success have been achieved through the innovation of our founders and engineers," said Jeff Lunsford, Limelight chairman and chief executive officer.
Shares of Akamai Technologies Inc. fell $1.63, or 3.2 percent, to $49.24. Shares in Limelight Networks Inc. rose 5 cents to $6.30.