来源：
页之码IP
As early as December 1, 2020, the China National Intellectual Property Office CNIPA and the European Patent Office EPO launched a pilot project to allow Chinese citizens or residents to choose EPO as their international search authority ISA and international preliminary examination when submitting a PCT application. Unit IPEA.
Recently, EPO and CNIPA announced that the pilot project will be further extended to November 30, 2026.
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