(19)

(11)

EP 4 308 505 A1

(12)

(43) Date of publication: 24.01.2024 Bulletin 2024/04 (21) Application number: 22710073.2 (22) Date of filing: 03.03.2022

(51) International Patent Classification (IPC):  C02F 1/00(2023.01) C02F 1/42(2023.01) (52) Cooperative Patent Classification (CPC): C02F 1/003; C02F 1/008; C02F 1/42; C02F 2209/008; C02F 2209/445; C02F 2307/04; C02F 1/283; C02F 2201/006 (86) International application number: PCT/EP2022/055384 (87) International publication number: WO 2022/194562 (22.09.2022 Gazette 2022/38)

(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: 16.03.2021 EP 21162745 (71) Applicant: BRITA SE 65232 Taunusstein (DE)	(72) Inventor: HAGEN, Thomas 55122 Mainz (DE)