Rule 21³⁴
Rectification of the designation of an inventor

(1) An incorrect designation of an inventor shall be rectified upon request and only with the consent of the wrongly designated person and, where such a request is filed by a third party, the consent of the applicant for or proprietor of the patent. Rule 19 shall apply mutatis mutandis.

(2) Where an incorrect designation of the inventor has been recorded in the European Patent Register or published in the European Patent Bulletin, its rectification or cancellation shall also be recorded or published therein.