1. Method and apparatus for providing conditional cascading in a computer system graphical user interface;assignee International Business Machines Corporation,1995
2. Auto-scrolling during a drag and drop operation;Silicon Graphics Inc,1997
3. Graphical user interface for navigating between levels displaying hallway and room metaphors;Assigned by General Magic,1997
4. Signalling the user attempting to resize an window beyond the limit;Invented by Andrea Argiolas, Assigned by IBM,1999