There are multiple definitions - click on the translation that matches your context.

wada jawna

rzeczownik

full

patent defect

noun

Comparative law notes

Poland

Also, but more coloquially, "usterka widoczna".

Definitions of patent defect

English

an obvious fault that can be seen immediately and is not hidden

The appellate court stated that it "…cannot say that the reroofing defects… were patent defects as a matter of law".