guideWorldwidefree
Patent families explained (EPO)
- Purpose
- Why one invention appears as many documents, and how to read a family.
- Coverage
- Simple and extended families, priority claims, what a family tells you about where protection was sought.
- Access conditions
- Free
- Region
- Worldwide
- Link
- https://www.epo.org/en/searching-for-patents/helpful-resources/first-time-here/patent-families
- Review date
- 29 Oct 2026
- Link check
- Reachable when checked on 28 Oct 2026
- Tags
- families, how-to