[Fork this notebook][3] to get started on accessing data in the BigQuery dataset by writing SQL queries using the BQhelper module. ## Context The CPC is the result of a partnership between the EPO and the USPTO in their joint effort to develop a common, internationally compatible classification system for technical documents, in particular patent publications, which will be used by both offices in the patent granting process. ## Content Cooperative Patent Classification Data contains the scheme and definitions of the Cooperative Patent Classification system for classifying patent documents. ## Acknowledgments “Cooperative Patent Classification” by the EPO and USPTO, for public use. Modifications have been made to parse the XML description sections to extract references to other classification symbols. Data Origin: https://bigquery.cloud.google.com/dataset/patents-public-data:cpc Banner photo by [Helloquence][1] on [Unsplash][2] [1]: https://unsplash.com/photos/bI8df767i5o [2]: https://unsplash.com/ [3]: https://www.kaggle.com/jessicali9530/how-to-query-cpc-data