In this legal decision, Hurom Co., Ltd. (Hurom) sought permission from the Court of Appeal of the Unified Patent Court to further exchange written pleadings before an upcoming oral hearing. Hurom initially appealed against a decision by the Paris Local Division, which dismissed its infringement claims and found parts of its patent invalid based on lack of inventive step. NUC Electronics and its affiliated companies (collectively 'NUC') contested this appeal, presenting new prior art to challenge the auxiliary requests Hurom added post-appeal.

The Court denied Hurom's application for further written exchanges, stating that such exchanges are admissible only under specific circumstances. The court emphasized the importance of efficiency and fairness in proceedings. Hurom's request was considered untimely, as the proceedings had already been prepared for the oral hearing. As such, Hurom will need to address its arguments against NUC's evidence and claims during the oral hearing rather than through additional written exchanges.