Article R321-26 of the French Intellectual Property Code
I. – The requests referred to in articles L. 327-6 and L. 327-13 shall be made by letter delivered against signature or any other means capable of establishing proof of the date of referral, including by electronic means. They shall include: 1° If the person making the request is a natural person, their surname, first name, address and telephone number and, if they are subject to formalities for registration in…