In a true clash of the titans, Oracle filed a lawsuit against Google last August, alleging patent and copyright infringement. The database giant's statement charged that "in developing Android, Google knowingly, directly and repeatedly infringed Oracle’s Java-related intellectual property. This lawsuit seeks appropriate remedies for their infringement." At issue are patents dealing with various program methods and security functions. Google, in turn, has claimed that not only did it not violate the patents but also that the patents should be ruled invalid to begin with. Google’s aggressive response to Oracle’s filing suggests we’ll see a pitched battle that will lasts years.