human: How to decide between the Unitary Patent and an EP Patent?
assistant: The decision can be based on how the patents would be effected: For the Unitary Patent, infringement or revocation will be decided for all states at once at the Unified Patent Court. For example, a positive infringement decision with a unitary effect in all states can be a great win for the applicant, while a revocation decision with a unitary effect in all states would be a great loss for the applicant, the patent would be lost in all states at once. The applicant might choose the Unitary Patent only for very strong patents.

The decision between EP patent and Unitary Patent can also be based on the different annuity costs.

If the EP patent is to be validated in three or fewer countries, the EP patent is more cost effective.
If the EP patent is to be validated in four or more countries, the Unitary Patent is more cost effective.