Intellectual PropertyPatent Litigation
Global Patent Litigation Strategies: Navigating the Complex Web of International IP Disputes
This in-depth guide explains how to plan, coordinate, and prosecute patent litigation across multiple countries when a single product line infringes parallel patents in many markets. It begins with the bedrock principle of territoriality and the treaty architecture (Paris Convention priority, the PCT, and the European Patent Convention) that lets innovators build a coordinated multinational portfolio, then walks through the major litigation forums: the U.S. district courts and the International Trade Commission, the Unified Patent Court and Germany's bifurcated system, the United Kingdom, China, Japan, and Korea. It analyzes the standard-essential patent (SEP) and FRAND wars in detail, including the Huawei v. ZTE protocol, global rate-setting in Unwired Planet v. Huawei and the InterDigital litigation, the German Sisvel v. Haier line, and the escalating tit-for-tat of anti-suit and anti-anti-suit injunctions. The article also covers cross-border discovery tools (28 U.S.C. 1782, the Hague Evidence Convention, and the Aerospatiale comity analysis), coordination of parallel proceedings and global settlements, and the recognition and enforcement of judgments abroad. Throughout, it offers concrete worked examples and practical guidance for both patent owners and accused infringers operating on a global stage.