UPC-Court of First Instance: Procedural decision on the change of the language of the proceedings

The plaintiff and the defendant are internationally operating companies that operate worldwide and are therefore in a comparable situation with regard to their respective logistical and financial resources for conducting patent litigation proceedings in various languages. The defendant’s request to change the language of the proceedings to the language in which the patent was granted is granted. In the event that the balance of interests between the defendant and the plaintiff is equal, the defendant’s position shall prevail. The defendant did not initiate the proceedings and is, moreover, burdened by tight deadlines for its preparation. Therefore, priority must be given to the defendant’s motion to change the language of the proceedings (President CFI, 12.9.2025, CFI 481/2025).