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(11)

EP 4 532 156 A1

(12)

(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 23728351.0 (22) Date of filing: 24.05.2023

(51) International Patent Classification (IPC):  B27L 7/00(2006.01) B27N 1/00(2006.01) B27N 3/02(2006.01) B27N 3/18(2006.01) B27N 5/00(2006.01) (52) Cooperative Patent Classification (CPC): B27L 7/00; B27N 3/18; B27N 1/00; B27N 5/00; B27M 3/0026; B27N 3/02 (86) International application number: PCT/EP2023/063869 (87) International publication number: WO 2023/232572 (07.12.2023 Gazette 2023/49)

(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: 30.05.2022 EP 22176100 (71) Applicant: ETH Zurich 8092 Zurich (CH)	(72) Inventors: SCHNIDER, Thomas 8092 Zürich (CH) BURGERT, Ingo 8092 Zürich (CH) (74) Representative: Schulz Junghans Patentanwälte PartGmbB  Großbeerenstraße 71 10963 Berlin 10963 Berlin (DE)