The present system of European (EP) patents granted by the European Patent Office, has the drawback that the same patent, validated in several states, may lead to several parallel disputes in these jurisdictions.
The Unified Patent package creates a unitary effect for European patents encompassing the states that have ratified the Unified Patent Court Agreement (UPCA – to be found here). That is to say, an EP patent with unitary effect will have the same effects in all the states that ratified the UPCA and where said patent has been validated.