2.1.1 General 2.1.2 Examination at any stage in the proceedings of entitlement to oppose 2.1.3 Filing of opposition by patent proprietor or inventor 2.1.4 Filing of opposition on behalf of a third party – straw man 2.1.5 Repeated filing of an opposition by the same person 2.1.6 Filing of multiple oppositions by different persons 2.1.7 Filing a joint opposition – multiple opponents Source: http://www.epo.org/law-practice/legal-texts/html/caselaw/2019/e/clr_iv_c_2_1.htmDate retrieved: 17 May 20219 references found. Click X to load a reference inside the current page, click on the title to open in a new page.Case Law Book: IV Divisional ApplicationsXCLR IV C Opposition procedureLoading...XCLR IV C 2 Filing and admissibility requirementsLoading...XCLR IV C 2.1.1 GeneralLoading...XCLR IV C 2.1.2 Examination at any stage in the proceedings of entitlement to opposeLoading...XCLR IV C 2.1.3 Filing of opposition by patent proprietor or inventorLoading...XCLR IV C 2.1.4 Filing of opposition on behalf of a third party – straw manLoading...XCLR IV C 2.1.5 Repeated filing of an opposition by the same personLoading...XCLR IV C 2.1.6 Filing of multiple oppositions by different personsLoading...XCLR IV C 2.1.7 Filing a joint opposition – multiple opponentsLoading...