Petition for review under the European Patent Convention

Under the European Patent Convention (EPC), a petition for review is a request to the Enlarged Board of Appeal of the European Patent Office (EPO) to review a decision of a board of appeal. The procedure was introduced in Article 112a EPC when the EPC was revised in 2000, to form the so-called "EPC 2000".

Source: Wikipedia — Petition for review under the European Patent Convention (CC BY-SA 4.0)