Actions against decisions of the UPP Division may be brought before the UPC (Rule 23 UPR; Section 6 RoP UPCSection 6, Chapter 1, RoP UPC).
An action to annul or alter a decision of the UPP Division, other than a decision rejecting a request for unitary effect, must be lodged with the Registry of the UPC in the language of the proceedings within two months of service of the decision (Rule 88(1) RoP UPC).
More information can be found on the UPC website at unified-patent-court.org.