Computer-implemented method and apparatus for automatic curved labeling of point features Grant US-5724072-A United States of America 03 Mar 1998
Method and apparatus for the placement of annotations on a display without overlap Grant US-5689717-A United States of America 18 Nov 1997
Computer-implemented method and apparatus for automatically labeling area regions of maps… Grant US-5684940-A United States of America 04 Nov 1997