Another day, another lawsuit. Apple, Sony, HTC Corp., LG Electronics and Samsung have been sued by Graphics Properties Holdings, formerly known as Silicon Graphics, for allegedly infringing a patent through their sale of mobile phones and other electronic devices, reports "Reuters" (http://macte.ch/Yznwf). The lawsuits were filed in the U.S. District Court in Wilmington, Delaware.

The patent at issue relates to a computer graphics process that turns text and images into pixels to be displayed on screens. According to the lawsuits, the defendants' infringing devices include Apple's iPhone and the HTC EVO4G, LG Thrill, Research in Motion Torch, Samsung Galaxy S and Galaxy S II, and Sony Xperia Play smartphones.

Graphics Properties said that unless the alleged infringements are halted, it will suffer irreparable harm. The lawsuits seek to stop the sale of infringing products and obtain "reasonable" royalties and other damages, notes "Reuters."