Trilateral Patent Offices
EUROPEAN PATENT OFFICE, JAPAN PATENT OFFICE, AND THE UNITED STATES PATENT AND TRADEMARK OFFICE
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The Trilateral Patent Offices, or simply the Trilateral Offices, are the European Patent Office (EPO), the Japan Patent Office (JPO) and the United States Patent and Trademark Office (USPTO). In 1983, these patent offices set up a programme of co-operation in an effort to "improve efficiency of the global patent system".