3.1 Basic principle 3.2 Factors affecting the unity of the European patent Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/d_vii_3.htmDate retrieved: 17 May 20214 references found. Click X to load a reference inside the current page, click on the title to open in a new page.EPO Guidelines - D Opposition and Limitation/Revocation ProceduresXGL D The meaning of opposition Loading...XGL D VII – Details and special features of the proceedings Loading...XGL D VII 3.1 Basic principle Loading...XGL D VII 3.2 Factors affecting the unity of the European patent Loading...