All parties must be duly summoned to oral proceedings by notification. The summons must state the subject, the date and time and the form of the oral proceedings.[Rule 115(1); Art. 119; ]

The division sets a single date for the oral proceedings, i.e. one day or, in particular cases, more than one consecutive day. No pre-announcement of the date will be made. Oral proceedings may be set for any working day on which the EPO is open at the relevant site.

The summons will be accompanied by a note drawing attention to the points which need to be discussed, normally containing the provisional and non-binding opinion of the division. New documents may be cited in the annex to the summons (T 120/12), together with an explanation of their significance. However, examiners must carefully consider on a case-by-case basis whether citing a new document would introduce a new line of argument. At an early stage in the procedure, they must consider sending a further communication before issuing any summons if a new document needs to be cited. For the additional requirements of the accompanying note if the summons is issued as the first action in examination, see C‑III, 5. The summons as well as the annexed communication can only be appealed together with the final decision unless a separate appeal is allowed (see E‑X, 3).[Rule 116(1); ]

The summons will also fix a date up to which written submissions may be filed or amendments which meet the requirements of the EPC may be submitted (see also D‑VI, 3.2).

Rule 115(1) stipulates that at least two months' notice of the summons must be given unless the parties agree to a shorter period. Such agreement must be present in the public part of the file.[Rule 115(1); ]

Harmonised with the standards applied in the written procedure (E‑VIII, 1.2), the practice outlined below is followed in setting the date of the oral proceedings to allow the parties sufficient time for preparing and filing submissions:

The summons must state that if parties duly summoned do not appear as summoned or fail to connect to the oral proceeding by videoconference, as the case may be, the proceedings may continue without them.

In opposition proceedings, where multiple oppositions have been filed, as a rule, a single hearing in oral proceedings is scheduled, even if the oppositions are based on different grounds (see D‑I, 6). This means that all the parties must be summoned to attend them and may present comments on all grounds raised.