The EPC 2000 or European Patent Convention 2000 is the version of the European Patent Convention (EPC) as revised by the Act Revising the Convention on the Grant of European Patents signed in Munich on November 29, 2000. On June 28, 2001, the Administrative Council of the European Patent Organisation adopted the final new text of the EPC 2000. The EPC 2000 entered into force on December 13, 2007. The EPC 2000 does not introduce any major changes in substantive patent law, except changes concerning novelty, industrial applicability and priority rights. The EPC 2000 is however a comprehensive revision introducing "a considerable number of smaller amendments". Background A diplomatic conference was held from 20 November to 29 November 2000 in Munich to revise the Convention on the Grant of European Patents of 5 October 1973, amongst other things to integrate in the EPC new developments in international law, especially those of the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPs Agreement) and of the Patent Law Treaty, and to add a level of judicial review of the Boards of Appeal decisions. Entry into force Greece deposited its instrument of ratification on December 13, 2005, and was the fifteenth Contracting State to ratify or accede to the EPC 2000. In addition, since not all the contracting states had deposited their instruments of ratification or accession by September 30, 2007, the EPC 2000 will enter into force on December 13, 2007. A Contracting State that would not have ratified or acceded to the EPC 2000 at the time of its entry into force, i.e. on December 13, 2007, would have ceased to be party to the EPC as from that time. All Contracting States ratified in due time. Amendments Prior art effect and double patenting Under the EPC 1973, in order to preclude double patenting, the prior art effect of a first European patent application (a so-called "conflicting patent application") filed before the filing date of a second European patent application, but published after said filing date, on the second application is limited to the designated states in common. In the EPC 2000, this provision, i.e. Article 54(4) EPC, has been deleted. This means in the EPC 2000 that "any European application falling under Article 54(3) EPC constitutes prior art with effect for all the EPC contracting states at the time of its publication." has been deleted following the deletion of