A $391 million judgment against SAP stands after the U.S. Supreme Court this week refused to hear the software company's appeal in a patent infringement case. The judgment stands even though the patent involved has been invalidated. The judgment was obtained by Versata Software in case involving alleged patent-infringement of database management tools. According to published reports, SAP had argued an appeals court changed rules on determining patent infringement and the case should have been suspended while the  patent's validity determined.