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EP 4 490 430 A1

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(43) Date of publication: 15.01.2025 Bulletin 2025/03 (21) Application number: 22712398.1 (22) Date of filing: 10.03.2022

(51) International Patent Classification (IPC):  F21K 9/272(2016.01) F21K 9/278(2016.01) F21K 9/69(2016.01) F21V 23/00(2015.01) F21K 9/275(2016.01) F21K 9/66(2016.01) F21V 31/00(2006.01) (52) Cooperative Patent Classification (CPC): F21K 9/275; F21K 9/272; F21K 9/278; F21K 9/69; F21K 9/66; F21V 23/002; F21V 31/005 (86) International application number: PCT/EP2022/056215 (87) International publication number: WO 2023/169685 (14.09.2023 Gazette 2023/37)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: Zalux S.A. 50012 Zaragoza (ES)

(72) Inventors: LEWERS, Christoph 59757 Arnsberg (DE) ALONSO GRAÑENA, Angela CP 50230 Alhama de Aragón (Zaragoza) (ES) ALEJANDRE ALEJANDRE, Miguel Angel CP 50013 Zaragoza (ES) ESTEBAN SALILLAS, Ana CP 50011 Zaragoza (ES) SANAHUJA CATALÁN, Wenceslao CP 50013 Zaragoza (ES) (74) Representative: Lippert Stachow Patentanwälte Rechtsanwälte  Partnerschaft mbB Frankenforster Strasse 135-137 51427 Bergisch Gladbach 51427 Bergisch Gladbach (DE)