(19)

(11)

EP 4 770 774 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24868810.3 (22) Date of filing: 19.09.2024

(51) International Patent Classification (IPC):  B01D 21/02(2006.01) A01K 63/04(2006.01) B01D 21/34(2006.01) C02F 1/52(2023.01) (52) Cooperative Patent Classification (CPC): C02F 11/121; C02F 11/12; A01K 63/04; B01D 29/03; B01D 21/0051; B01D 21/006; B01D 21/0006; B01D 21/245; B01D 21/0012; B01D 2221/06; B01D 21/34; B01D 21/2438 (86) International application number: PCT/NO2024/050200 (87) International publication number: WO 2025/063853 (27.03.2025 Gazette 2025/13)

(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: 19.09.2023 NO 20231001 (71) Applicant: Usereuse AS 0158 Oslo (NO)	(72) Inventor: GRINDE, Bjørn Hugo 5005 Bergen (NO) (74) Representative: Acapo Onsagers AS  Edvard Griegs vei 1 5059 Bergen 5059 Bergen (NO)