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(11)

EP 4 798 760 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24773037.7 (22) Date of filing: 19.09.2024

(51) International Patent Classification (IPC):  C25B 1/04(2021.01) C25B 9/19(2021.01) C25B 11/054(2021.01) C25B 11/085(2021.01) C25B 3/26(2021.01) C25B 9/50(2021.01) C25B 11/065(2021.01) H10F 77/12(2025.01) (52) Cooperative Patent Classification (CPC): C25B 3/26; C25B 1/04; C25B 9/19; C25B 9/50; C25B 11/054; C25B 11/065; C25B 11/085; Y02P 20/133 (86) International application number: PCT/EP2024/076232 (87) International publication number: WO 2025/087626 (01.05.2025 Gazette 2025/18)

(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: GE KH MA MD TN (30) Priority: 26.10.2023 EP 23205983 (71) Applicants: Université Paris Cité 75006 Paris (FR) Nantes Université 44000 Nantes (FR) Centre National de la Recherche Scientifique 75016 Paris (FR)

(72) Inventors: ROBERT, Marc 75019 Paris (FR) ODOBEL, Fabrice 44300 Nantes (FR) BARREAU, Nicolas 44300 Nantes (FR) (74) Representative: Demulsant, Xavier  Dejade & Biset 8 Avenue Jean Bart 95000 Cergy 95000 Cergy (FR)