iCAT Corporation v. DENTSPLY SIRONA Inc. and Dentsply Sirona Deutschland GmbH

UPC_5D8F460B15

iCAT Corporation brought a patent infringement action against DENTSPLY SIRONA Inc. and Dentsply Sirona Deutschland GmbH concerning European Patent EP 1 808 129 B1 before the Local Division Mannheim. The defendants filed a preliminary objection under R.19 RoP arguing that Article 72 UPCA limits the temporal scope of financial compensation to acts occurring after 11 June 2021. The court dismissed the preliminary objection as inadmissible, holding that it concerned the scope of relief rather than the court's jurisdiction or competence.

Jurisdiction
European UPC
Court
UPC Court
Case Number
UPC_5D8F460B15
Decision Date
26 August 2026

Detailed Summary

The Claimant, iCAT Corporation (a Japanese company based in Osaka), filed a patent infringement action against two Defendants: DENTSPLY SIRONA Inc. (a US company based in Charlotte, North Carolina) and Dentsply Sirona Deutschland GmbH (a German company based in Bensheim). The patent at issue was European Patent no. EP 1 808 129 B1. The proceedings were conducted in English before the Local Division Mannheim of the Unified Patent Court, with Judge Thomas Adocker serving as judge-rapporteur.

The Defendants filed a preliminary objection on 24 July 2026 under Rule 19 of the Rules of Procedure (RoP). While they did not contest the Court's jurisdiction or competence, they argued that Article 72 UPCA precludes the Court from providing the full breadth of relief sought. Specifically, they contended that the Claimant's claimed start date of 4 June 2017 for the calculation of damages was irreconcilable with the five-year limitation period under Article 72 UPCA. They argued that since the Statement of Claim was formally submitted on 11 June 2026 (after correction of formal deficiencies), financial compensation could not be sought for acts prior to 11 June 2021. The Defendants requested that the substance of the objection be dealt with in the main proceedings under R. 20.2 RoP.

The Claimant argued that the preliminary objection was inadmissible and unfounded. It contended that the objection did not concern jurisdiction or competence but rather the applicable substantive law and scope of relief, which falls outside the scope of R. 19.1 RoP. The Claimant further argued that a distinction must be drawn between the intertemporal applicability of substantive law, the temporal scope of information to be rendered, and the period relevant to damages determination. It also argued that the correction of formal deficiencies on 11 June 2026 should not displace 1 June 2026 as the date the action was brought, citing UPC case law (Amgen v. Sanofi-Aventis, UPC_CFI_1/2023) treating an action as brought by the objective act of lodging it.

The Court ruled that the preliminary objection was inadmissible. Under R. 19.1 RoP, a preliminary objection may only concern: (a) the jurisdiction and competence of the Court; (b) the competence of the division indicated by the claimant; or (c) the language of the Statement of claim. The Defendants' objection merely contended that Article 72 UPCA limits the temporal scope of certain remedies and did not refer to any of the permitted grounds under R. 19.1 RoP. The Court therefore dismissed the preliminary objection of 24 July 2026 as inadmissible, without ruling on its substantive merits.

Practitioner Note

This case demonstrates the evidentiary and procedural standards applied in patent matters before UPC Court. Understanding the court's reasoning in iCAT Corporation vs DENTSPLY SIRONA Inc. and Dentsply Sirona Deutschland GmbH is valuable context for structuring arguments or assessing risk in similar proceedings.

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