The EPO is responsible for the administration of the Register for unitary patent protection UP Register under (Art. 9(1)(b) Regulation (EU) No 1257/2012 and Rule 1(1) UPR).
The Register for unitary patent protection UP Register can be consulted as an integral but special part of the European Patent Register kept by the EPO under Art. 127 EPC (Rule 15 UPR, EPC Guidelines, A‑XI, 4).