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Local Division Hamburg UPC_CFI_481/2026 Order of the Court of First Instance of the Unified Patent Court Local Division Hamburg issued on 7 May 2026 HEADNOTE 1. The success of a subsequent entitlement proceeding, whereby the Claimant becomes the rightful owner of the patent, has no bearing on the validity of an opt-out declaration, as transfer of ownership does not have retroactiv e effect. The meaning of the term ‘proprietor’ in Article 83(4) UPCA is to be understood in no other way. 2. The vali dity of filing a national revocation action is not precluded by a possible protective order issued by a national court and hinders a valid withdrawal of an opt-out. CLAIMANTS SILIMED Indústria de Implantes Ltda., Rua Figueiredo Rocha, 374, CEP 21240 -660, Rio de Janiero, Brazil, Claimant 1), Silim ...