(19)

(11)

EP 4 537 369 A1

(12)

(43) Date of publication: 16.04.2025 Bulletin 2025/16 (21) Application number: 23733238.2 (22) Date of filing: 09.06.2023

(51) International Patent Classification (IPC):  H01F 1/11(2006.01) H01F 41/02(2006.01) (52) Cooperative Patent Classification (CPC): H01F 1/11; H01F 41/0266 (86) International application number: PCT/EP2023/065539 (87) International publication number: WO 2023/237760 (14.12.2023 Gazette 2023/50)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 10.06.2022 EP 22178441 (71) Applicant: Aarhus Universitet 8000 Aarhus C (DK)	(72) Inventors: CHRISTENSEN, Mogens 8000 Aarhus C (DK) ZINK EIKELAND, Anna 8000 Aarhus C (DK) PILLAI, Harikrishnan Vijayan 8000 Aarhus C (DK) (74) Representative: Høiberg P/S  Adelgade 12 1304 Copenhagen K 1304 Copenhagen K (DK)