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EP 4 072 986 A1

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(43) Date of publication: 19.10.2022 Bulletin 2022/42 (21) Application number: 20817408.6 (22) Date of filing: 09.12.2020

(51) International Patent Classification (IPC):  B65H 49/32(2006.01) B63B 35/04(2006.01) (52) Cooperative Patent Classification (CPC): H02G 1/10; B65H 55/00; B63B 35/04; B65H 2701/34; B65H 49/32; B65H 75/28; B65H 59/38; H02G 9/02; Y02E 10/727 (86) International application number: PCT/EP2020/085202 (87) International publication number: WO 2021/116148 (17.06.2021 Gazette 2021/24)

(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 (30) Priority: 11.12.2019 EP 19383098 (71) Applicants: Fundación Tecnalia Research & Innovation 48160 Derio - Bizkaia (ES) BCAM Basque Center for Applied Mathematics 48009 Bilbao (ES)

(72) Inventors: BERQUE, Joannes 48160 Derio (ES) RICO RUBIO, Antonio 48160 Derio (ES) SELLNER, Jan 48160 Derio (ES) NAVA, Vincenzo 48009 Bilbao (ES) PÉREZ MORÁN, Germán 48160 Derio (ES) (74) Representative: Balder IP Law, S.L.  Paseo de la Castellana 93 5ª planta 28046 Madrid 28046 Madrid (ES)