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The Hamburg Local Division of the Unified Patent Court addresses whether patent holders must assert all potentially infringed patents in a single preliminary measures application, or if they may pursue separate proceedings. The decision clarifies the scope of due diligence obligations when patent holders become aware of potential infringements and the strategic implications for enforcement actions.

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The Unified Patent Court's Local Division in Düsseldorf addresses procedural matters concerning inspection and preservation of evidence in a patent dispute between Danish company Topsoe A/S and German respondents SYPOX GmbH and Josef Kerner Energiewirtschafts-GmbH. The case involves questions regarding the release of detailed descriptions and protection of confidential information under Articles 58 and 60 of the UPCA.