DIFF Subgroup
G06F 16/332 Query formulation
Introduced: January 2019
Full Title
Full titles differ between systems:
IPC:
Information retrieval; Database structures therefor; File system structures therefor > of unstructured textual data > Querying > Query formulation
CPC:
Information retrieval; Database structures therefor; File system structures therefor > of unstructured textual data (document management systems G06F16/93) > Querying > Query formulation
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
IPC defines codes here since 2025.
Child Classifications
Navigate with arrow keys, Enter to open