The European Patent Office (EPO), established on October 7, 1977, under the European Patent Convention (EPC), is an intergovernmental organization responsible for examining and granting European patents that can take effect in 42 contracting states.

  The EPO ranks among the world's most authoritative and modern patent offices, possessing the most comprehensive patent documentation resources, advanced patent information retrieval systems, and extensive experience in patent examination, appeal procedures, and legal research. The China National Intellectual Property Administration has engaged in extensive collaboration with the EPO regarding document collection, retrieval systems, examiner training, and information product development.

  CnOpenData presents European Patent Office patent data containing essential information fields such as patent applicants (专利申请人), patent inventors (专利发明人), IPC classification symbols (IPC分类号), CPC classification symbols (CPC分类号), C-sets classification (C-sets分类号), application date (专利申请日), publication date (专利公开日), and publication number collections (公开号集合). This dataset provides robust support for relevant research.

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Time Coverage

As of 2022

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Field Display

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Sample Data

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Data Update Frequency

Annual updates