ASTES4 SA, the claimant, filed an infringement action against Bystronic Laser AG, Bystronic Austria GmbH, Bystronic Italia S.r.l., and Isochronic AG related to patent EP2164678, concerned with a 'loading/unloading system.' The defendants requested a change of the language of the proceedings from Italian to English, as the English language was used predominantly in pre-litigation and is the language of the patent. ASTES4 SA opposed, emphasizing the suitability of Italian and the inconvenience of changing languages. The President of the Court considered Article 49(5) UPCA and Rule 323 RoP and interpreted that an early application is permissible. It was held that the application was admissible, ensuring efficiency in proceedings.