(19)

(11)

EP 4 294 549 A1

(12)

(43) Date of publication: 27.12.2023 Bulletin 2023/52 (21) Application number: 22707663.5 (22) Date of filing: 15.02.2022

(51) International Patent Classification (IPC):  B01D 53/14(2006.01) A01K 1/01(2006.01) A01K 1/015(2006.01) B01D 53/22(2006.01) (52) Cooperative Patent Classification (CPC): B01D 53/14; B01D 53/1493; B01D 2053/221; B01D 2252/103; A01K 1/0107 (86) International application number: PCT/EP2022/053684 (87) International publication number: WO 2022/175270 (25.08.2022 Gazette 2022/34)

(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: 16.02.2021 WO PCT/EP2021/053777 (71) Applicant: Van Bavel, Else 2800 Mechelen (BE)	(72) Inventor: WUYTS, Bram 2610 Wilrijk (BE) (74) Representative: Arnold & Siedsma  Bezuidenhoutseweg 57 2594 AC The Hague 2594 AC The Hague (NL)