Cooperations
The EPO cooperates with the United States Patent and Trademark Office (USPTO) and the Japan Patent Office (JPO) as one of the Trilateral Patent Offices. It also works with the Japan Patent Office (JPO), the Korean Intellectual Property Office (KIPO), the State Intellectual Property Office of the People's Republic of China (SIPO) and the United States Patent and Trademark Office (USPTO) in a co-operation known as the "five IP offices" or IP5.
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