The request for the conservation of evidence must contain:[Rule 123(2); ]

(i)the name, address and nationality of the persons filing the request and the state in which their residence or principal place of business is located, in accordance with the provisions of Rule 41(2)(c);[Rule 123(2)(a); ]

(ii)sufficient identification of the European patent application or European patent in question; [Rule 123(2)(b); ]

(iii)the designation of the facts in respect of which evidence is to be taken; [Rule 123(2)(c); ]

(iv)particulars of the way in which evidence is to be taken; and [Rule 123(2)(d); ]

(v)a statement establishing a prima facie case for fearing that it might subsequently become more difficult or impossible to take evidence.[Rule 123(2)(e); ]

The request is not deemed to have been filed until the fee for conservation of evidence has been paid.[Rule 123(3); ]