EPO finalises 2026 guidelines following user consultation on evidence standards and AI patentability
The European Patent Office (EPO) has concluded its discussions on the 2026 EPC, PCT-EPO, and Unitary Patent Guidelines. Following the circulation of draft texts and receipt of nearly 400 user comments, the EPO provided written responses and engaged in focused dialogue on key issues. It confirmed that all three sets of guidelines will be published in PDF format and committed to improving the visibility of interim Official Journal publications. Notable developments include the introduction of new chapters detailing entry into the European phase, clarification of legal standards following decisions G 1/24 and G 2/21, and ongoing efforts to refine guidance on the patentability of antibodies and AI-related inventions. While consensus was not reached on all topics, the EPO pledged further review and consultation, with the full results to be published after presentation to the Patent Law Committee on 23 October. The revised guidelines will take effect on 1 April 2026, with a preview available in February and a subsequent public consultation.