The U.S. Court of Appeals for the Federal Circuit has brought a near-certain end to RealTime Data’s patent infringement campaign against a large swath of the financial services industry.

In a decision issued Monday, the appeals court affirmed a trial judge’s ruling that about two dozen banks, stock exchanges and media companies don’t infringe on RealTime’s patents relating to market data transmission. Companies benefiting from the ruling include Credit Suisse AG, CME Group Inc. and Thomson Reuters Corp.