A lawsuit by Activision Publishing, a subsidiary of Activision Blizzard (ATVI), against Worlds Inc. (WDDD) and Worlds Online has been dismissed with prejudice, Worlds reported. In the suit, Activision alleged that Worlds violates U.S. Patent No. 6,014,145 entitled "Navigation with optimum viewpoints in three-dimensional workspace interactive displays having three-dimensional objects with collision barriers" and U.S. Patent No. 5,883,628 entitled "Climability: property for objects in 3-D virtual environments." Thom Kidrin, CEO for Worlds Inc. and Worlds Online, said, "With that matter disposed permanently, we are now focusing on the scheduling of the Markman Hearing date in our patent infringement suit against Activision et al."