A drag-and-drop user interface (DDUI) can generate multiple charts in an integrated chart report and supports the drag-and-drop method of adding fields to the integrated chart report. When a field is dropped from a field list into a multiple chart drop zone, the DDUI will automatically generate additional...http://www.google.de/patents/US6906717?utm_source=gb-gplus-sharePatent US6906717 - Multiple chart user interface
