July 21, 2009 - Tsera, LLC filed its patent infringement lawsuit against Apple and many other defendants, claiming that their products infringe its patent, "Methods and apparatus for controlling a portable electronic device using a touchpad." The "click wheels" on the iPod classic and iPod nano, as well as the controls of the Microsoft Zune, LG Chocolate, and several other devices, are alleged to infringe the patent.
Tsera has requested a jury trial, which would be held in the District Court for the Eastern District of Texas in Tyler, Texas. Other defendants besides Apple and Microsoft include LG Electronics, Philips Electronics North America Corp., iRiver, Inc. and several others. The filing can be viewed here.