An appeal is a legal remedy that can be used against decisions by patent offices and courts. This legal remedy is generally not employed against judgments, as they can usually only be contested through appeal or revision. In the course of appeal proceedings, a legal and factual review of the contested decision can take place. Appeal proceedings against decisions of the German Patent and Trademark Office (DPMA) are conducted at the Federal Patent Court, while proceedings against decisions of the EPO take place at the Boards of Appeal of the EPO.