According to Rule 61 of the European Patent Convention (EPC) Implementing Regulations (IR),
(1)
The European search report shall mention those documents, available to the European Patent Office at the time of drawing up the report, which may be taken into consideration in deciding whether the invention to which the European patent application relates is new and involves an inventive step.
(2)
Each citation shall be referred to the claims to which it relates. Where appropriate, relevant parts of the documents cited shall be identified.
(3)