# International Patent Classification

> hierarchical patent classification system

**Wikidata**: [Q1667423](https://www.wikidata.org/wiki/Q1667423)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/International_Patent_Classification)  
**Source**: https://4ort.xyz/entity/international-patent-classification


## References

1. [Source](https://www.argentina.gob.ar/inpi/patentes/buscar-e-investigar-patentes)
2. Freebase Data Dumps. 2013