Nashua, N.H.-based MangoSoft had sought more than US$500 million in damages from Oracle for alleged infringement on one of its patents related to shared memory technology.

In a statement, Oracle said a U.S. District Court in New Hampshire ruled in its favor this week on a motion for summary judgment affirming that it did not infringe on MangoSoft's patent. MangoSoft sued Oracle in 2002 and had sought to stop further sales of Oracle's Real Application Clusters database versions 9 and 10, as well as its Application Server software.

The ruling ends the proceedings against Oracle but allows the company to move forward on its claims that MangoSoft's patent is invalid and unenforceable.

Oracle will release third-quarter earnings on Monday.