m, method and data structure for simulated interaction with graphical objectsUS7710399Mar 15, 2004May 4, 2010Immersion CorporationHaptic trackball deviceUS7728820Jul 10, 2003Jun 1, 2010Immersion CorporationHaptic feedback for touchpads and other touch controlsUS7742036Jun 23, 2004Jun 22, 2010Immersion CorporationSystem and method for controlling haptic devices having multiple operational modesUS77