Judge Profile

Christoph Norrenbrock

5 IP cases indexed. Covers patent matters.

Cases Presided Over

5 cases indexed | Page 1 of 1

patent LITIGATION · Aug 14, 2025

Barco N.V. v.Yealink (Xiamen) Network Technology Co. Ltd. & Yealink (Europe) Network Technology B.V.

Luxembourg (LU) · UPC-000447

This appeal before the Court of Appeal of the Unified Patent Court concerned Barco N.V.'s application for leave to change its claim and request for exchange of further written pleadings in proceedings related to alleged infringement of EP 3 732 827. The Court of First Instance (Brussels Local Division) had dismissed Barco's application for provisional measures for lack of urgency. The Court of Appeal denied Barco's application to introduce a subsidiary claim, finding it broadened the original claim without justification for late amendment, and also rejected Barco's requests for further written pleadings and to disregard portions of Yealink's Statement of response.

patent LITIGATION · Jun 20, 2025

Telefonaktiebolaget LM Ericsson v.Asustek Computer Inc. and Arvato Netherlands B.V.

Milan (IT) Local Division · UPC-000609

This case concerns Ericsson's application for panel review of a decision by the Judge Rapporteur rejecting its request for an 'external eyes only' confidentiality regime to protect sensitive licensing information submitted in connection with a patent infringement action involving EP 2727242. The Milan Local Division Panel dismissed the application, finding that Ericsson failed to provide concrete factual evidence demonstrating an actual risk of antitrust violations from disclosure to a single Asustek employee. However, the Panel granted Ericsson leave to appeal in order to allow the Court of Appeal to set a standard on this issue.

patent LITIGATION · Jun 20, 2025

Telefonaktiebolaget LM Ericsson v.ASUSTek Computer Inc. and Arvato Netherlands B.V.

Milan (IT) Local Division · UPC-000607

This case concerns an application for panel review under Rule 333 RoP filed by Ericsson regarding the confidentiality regime for its licensing documents in patent infringement proceedings involving EP3076673. Ericsson sought an 'external eyes only' confidentiality regime to prevent Asustek's employees from accessing sensitive licensing data involving Asustek's competitors. The Milan Local Division Panel dismissed the application, finding Ericsson failed to provide concrete factual evidence of an actual risk of antitrust violations, but granted leave to appeal to allow the Court of Appeal to set a standard on this issue.

patent LITIGATION · May 7, 2025

Telefonaktiebolaget LM Ericsson v.Asustek Computer Inc., Arvato Netherlands B.V., and Digital River Ireland Ltd.

Milan (IT) Local Division · UPC-000718

This case before the Milan Local Division concerned the withdrawal of infringement and revocation proceedings involving patent EP3076673 against Digital River Ireland Ltd. following Digital River's insolvency and winding-up order by the High Court of Ireland. Both Ericsson and Digital River agreed to mutual withdrawal of the infringement action and counterclaim for revocation, but disagreed on costs. The Court allowed the withdrawals, ordered the main proceedings to continue against the remaining defendants (Asustek and Arvato), and held that both Ericsson and Digital River should bear their own costs.

patent LITIGATION · May 7, 2025

Telefonaktiebolaget LM Ericsson v.Asustek Computer Inc., Arvato Netherlands B.V., and Digital River Ireland Ltd.

Milan (IT) Local Division · UPC-000717

This case concerns the withdrawal of infringement and revocation proceedings involving EP 2727342 at the Milan Local Division. Following Digital River Ireland Ltd.'s insolvency and winding-up order by the High Court of Ireland, both Ericsson and Digital River sought to withdraw their respective claims against each other. The Court allowed both withdrawals, with the main infringement action continuing against Asustek and Arvato, and ordered both parties to bear their own costs based on principles of fairness and equity.

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