appears_in: [] depends_on: [] deprecated: false description: The Cooperative Patent Classification (CPC) is a patent classification system, developed jointly by the European Patent Office (EPO) and the United States Patent and Trademark Office (USPTO). It is based on the previous European classification system (ECLA), which itself was a version of the International Patent Classification (IPC) system. The CPC patent classification system has been used by EPO and USPTO since 1st January, 2013. example: A01M1/026 homepage: https://worldwide.espacenet.com/classification keywords: - atmospheric science - earth science - geodesy - geography - hydrogeology - meteorology mappings: biocontext: CPC fairsharing: FAIRsharing.e08886 miriam: cpc n2t: cpc name: Cooperative Patent Classification namespace_in_lui: false pattern: ^([A-H,Y]|[A-H, Y]\d{2}|[A-H, Y]\d{2}[A-Z]|[A-H, Y]\d{2}[A-Z]\d{1,3}|[A-H, Y]\d{2}[A-Z]\d{1,3}(\/)?\d{2,})$ preferred_prefix: cpc prefix: cpc providers: [] publications: [] synonyms: [] uri_format: https://worldwide.espacenet.com/classification?locale=en_EP#!/CPC=$1