RoP.087
Rule 87 - Grounds for annulling or altering a decision of the Office
An action against a decision of the Office may be brought on grounds of :
(a) infringement of Regulation (EU) No 1257/2012 or of Regulation (EU) No 1260/2012 or of any rule of law relating to their application ;
(b) infringement of any of the implementing rules of the European Patent Office for carrying out the tasks referred to in Article 9(1) of Regulation (EU) No 1257/2012 ;
(c) infringement of an essential procedural requirement ;
(d) misuse of power.