6. Representation before the EPO as ISA or SISA 

Any attorney, patent agent, or other person, having the right to practise Any agent or other person entitled to undertake representation before the receiving Office with which the international application was filed may represent the applicant throughout the international phase, including before the EPO as ISA or SISA (see GL/PCT‑EPO A‑VIII, 1.1). Depending on which office acted as receiving Office, such agent or other person may or may not be a professional representative or legal practitioner entitled to undertake representation under Art. 134 EPC.

Representation before the EPO as ISA or SISA may also be undertaken by any agent (professional representative or legal practitioner) competent to act before the EPO and duly appointed for this purpose (see GL/PCT‑EPO A‑VIII, 1.7 and GL/PCT‑EPO A-VIII, 1.8).