Apple, Sony and four other companies were 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.
The lawsuits against Apple, Taiwan-based HTC Corp, South Korea-based LG Electronics Inc and Samsung Electronics Co., BlackBerry maker Research in Motion Ltd and Japan’s Sony Corp 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 also seek reasonable royalties and other damages.
LG spokesman John Taylor said that company does not generally discuss pending legal matters. A Sony spokeswoman had no immediate comment. The remaining companies did not immediately respond to requests for comment.
Silicon Graphics filed for bankruptcy in 2009 and sold much of its operations to Rackable Systems Inc. The remaining operations are based in New Rochelle, New York, and are owned by private investment firms and other investors, according to the complaints.
The lawsuits are all in the U.S. District Court, District of Delaware.