Article L613-23-3 of the French Intellectual Property Code
I.-During the opposition proceedings, the proprietor of the contested patent may amend the claims of that patent provided that: 1° the amendments made meet one of the grounds for opposition mentioned in Article L. 613-23-1 raised by the opponent; > and 2° The amendments made do not extend the subject-matter of the patent beyond the contents of the application as filed or, where the patent has been granted on the…