1. If a Community plant variety right has been granted to a person who is not entitled to it under Article 11, the person entitled to it may, without prejudice to any other remedy which may be open to him under the laws of the Member States, claim to have the Community plant variety right transferred to him.
2. Where a person ist entitled to only part of a Community plant variety right, that person may, in accordance with paragraph 1, claim to be made a joint holder.
3. Claims pursuant to paragraphs 1 and 2 may be invoked only within a period of up to five years of publication of the grant of the Community plant variety right. This provision shall not apply if the holder knew, at the time it was granted to or acquired by him, that he was not entitled to such rights or that entitlement thereto was not vested solely in him.
4. The person entitled shall be eligible mutatis mutandis to pursue claims pursuant to paragraphs 1 and 2 in respect of an application for grant of a Community plant variety right filed by a person who was not entitled to it or whom the entitlement was not vested solely.