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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G06F 16/83

Querying

Introduced: January 2019

Full Title

Full titles differ between systems:

IPC:

Information retrieval; Database structures therefor; File system structures therefor > of semi-structured data, e.g. markup language structured data such as SGML, XML or HTML > Querying

CPC:

Information retrieval; Database structures therefor; File system structures therefor > of semi-structured data, e.g. markup language structured data such as SGML, XML or HTML (content-based retrieval of web data G06F16/95) > Querying

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2019.

Child Classifications

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  • G06F 16/832 Query formulation since 2019 IPC+CPC Available in IPC and CPC
  • G06F 16/838 Presentation of query results since 2019 IPC+CPC Available in IPC and CPC