text: Microsoft patent is rejected, but company vows to fight back The US Patent and Trademark Office has preliminarily rejected a Microsoft Corp. patent on a system for recognizing computer files, a victory for  quot;open source quot; advocates who believe 
inputs: Microsoft patent is rejected, but company vows to fight back The US Patent and Trademark Office has preliminarily rejected a Microsoft Corp. patent on a system for recognizing computer files, a victory for  quot;open source quot; advocates who believe 