3.2 Signature of the PCT request and a power of attorney 

The PCT request form or, where applicable, the power of attorney must be signed by the applicant (Box No. X of the request form).

Where there are two or more applicants, each applicant must sign the request, or each applicant for whom an agent has been appointed must sign a power of attorney (Box No. IX of the PCT request form). However, if there is more than one applicant, the EPO as receiving Office will not invite the applicant to furnish the missing signature(s) if the PCT request form is signed by at least one of the applicants. Any designated Office, however, may require the missing signature of any applicant who has not signed the PCT request for that designated state.

The EPO as designated Office does not require a missing signature to be submitted upon entry into the European phase.

For the requirements concerning the signature of the PCT request and a power of attorney see GL/RO 122-128.

The EPO as RO, ISA, SISA and IPEA has waived the requirement that, for the effective appointment of an agent, common agent or common representative, a signed separate power of attorney must be submitted to it if the PCT request is not signed by (all) the applicant(s). The EPO has also waived the requirement that a copy of the general power of attorney be attached to the PCT request or to a separate notice if appointment of a (common) agent is made by reference to a general power of attorney. For further details on powers of attorney, general powers of attorney and the waivers see GL/PCT‑EPO A‑VIII, 1.11-1.13.