The maximum length of the applicant's or agent's file reference in the PCT system has been extended to 25 characters (amendment to Section 109 of the Administrative Instructions under the PCT). The EPO has adapted all relevant forms under the EP and PCT procedures accordingly.
This change will be supported by the following EPO systems by 1 April 2020:
*The next release of Online Filing will offer this option in PCT/RO/101. Many thanks for your understanding.