Tsera LLC filed the suit against Apple, Microsoft and some 20 other companies at the US District Court, Eastern Texas Division. According to complaint Tsera, the company owns “all right, title and interest in” a patent which it describes as “methods and apparatus for controlling a portable electronic device using a touchpad.” The patent was filed in 1999 and granted in 2003. “The suit singles out Apple, claiming that the company knew of the existance of the patent back in 2004 and that is “has been and continues to be willful, wanton, and deliberate, and carried out with full knowledge and awareness of the Plaintiff’s patent rights and without license from Plaintiff.”

Source:→ ZDNet