Is it possible to file divisional applications in the international phase?
The PCT does not provide for the possibility of filing a divisional application. However, once the international application (i.e. the parent application) has validly entered the European phase, it is possible to file divisional applications with the EPO as designated/elected Office (see point 5.18.001).
Source: http://www.epo.org/applying/international/guide-for-applicants/html/e/ga_c2_6.html
Date retrieved: 17 May 2021