Samsung Countersues Apple in iPhone Patent Case

Samsung Electronics filed patent lawsuits against Apple over the U.S. firm's iPhone and iPad in a tit-for-tat case after Apple claimed Samsung's smartphones and tablets "slavishly" copied its products. Samsung's counter lawsuit, its first against its biggest client, comes days before it launches a new product and could jeopardize business ties between the two companies, as Apple relies on Samsung for component supplies such as chips and LCD displays.