Plans to develop a unitary patent system for the European Union have been thwarted by linguistic and legal difficulties. The main objectives of the unitary system are reduction of costs for obtaining and enforcing patents and lifting of legal uncertainties, by creating a unitary patent and a European Patents Court under a Unified Patent Litigation System (UPLS). Currently, European patents have to be validated in each country and are enforced by national law. The high translation costs for validating patents as well as the expensive and often unpredictable litigation outcome in the different member states – sometimes reaching conflicting verdicts in identical cases – have often been cited as major weak points of the system.