Predicate Proposals - Patent Parent Classification (CPC) & Patent Child Classification (CPC)

Field Name: Patent Parent Classification (CPC)

Definition: Patent Parent Classification (CPC) refers to the parent code to a patent classification in the Cooperative Patent Classification (CPC) system.

The Patent Parent Classification can be referenced using the European Patent Office’s Linked Open Data lookup (LDA resource at /linked-data/def/cpc/G05B2219-31.html) will be referred to as a “Broader” label

Tooltip definition of the predicate: Parent Cooperative Patent Classification (CPC) code.

Type of value (one of the following): entity

Number of accepted values (one of the following): single

Constraints: Only applies when Subject has the “Is a” value “Patent classification”

Citation Required?: Yes.

Examples of proper use:

Examples of improper use:

Usage in other schemas: n/a


Field Name: Patent Child Classification (CPC)

Definition: Patent Child Classification (CPC) refers to the parent code to a patent classification in the Cooperative Patent Classification (CPC) system.

The Patent Child Classification can be referenced using the European Patent Office’s Linked Open Data lookup (LDA resource at /linked-data/def/cpc/G05B2219-31.html) will be referred to as the “Narrower” labels.

Tooltip definition of the predicate: Child Cooperative Patent Classification (CPC) code.

Type of value (one of the following): entity

Number of accepted values (one of the following): multiple

Constraints: Only applies when Subject has the “Is a” value “Patent classification”

Citation Required?: Yes.

Examples of proper use:

Examples of improper use:

Usage in other schemas: n/a

Perhaps ‘Patent Parent Classification (CPC)’ and ‘Patent Child Classification (CPC)’ would make it clear these predicates are reserved for the context of patents?

Thanks, good suggestion - updated!

Patent Parent Classification (CPC) predicate vote

  • Yes, implement this predicate
  • No - do not implement

0 voters

Patent Child Classification (CPC) predicate vote

  • Yes, implement this predicate
  • No - do not implement

0 voters

Based on the voting above, the predicate definitions above have been approved. They will be added as web3 predicates in Golden soon!

This thread will now be closed and tagged appropriately.