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EP 4 399 346 A1

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(43) Date of publication: 17.07.2024 Bulletin 2024/29 (21) Application number: 22830454.9 (22) Date of filing: 04.12.2022

(51) International Patent Classification (IPC):  C25B 1/04(2021.01) C25B 9/23(2021.01) C02F 1/461(2023.01) C25B 9/15(2021.01) C25B 1/30(2006.01) C25B 11/032(2021.01) C02F 1/467(2023.01) (52) Cooperative Patent Classification (CPC): C25B 1/04; C25B 1/30; C25B 9/23; C25B 9/15; C25B 11/032; C02F 1/46104; C02F 1/32; C02F 1/78; C02F 2001/46142; C02F 2103/023; C02F 2201/46115; C02F 2305/023; C02F 2305/026; C02F 1/722; C02F 2303/04 (86) International application number: PCT/EP2022/084324 (87) International publication number: WO 2023/104680 (15.06.2023 Gazette 2023/24)

(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 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: 06.12.2021 EP 21212606 17.08.2022 US 202217889599 (71) Applicant: Hpnow Aps 2860 Søborg (DK)	(72) Inventors: SATHYADEV RAJMOHAN, Rajath 2610 Rødovre (DK) FRYDENDAL, Rasmus 2700 Brønshøj (DK) ARNAU, Verdaguer Casadevall 2400 København (DK) GOTTESFELD, Ziv 6249807 Tel Aviv (IL) (74) Representative: Stütz, Jan  Unter den Linden 10 10117 Berlin 10117 Berlin (DE)