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(11)

EP 4 561 967 A1

(12)

(43) Date of publication: 04.06.2025 Bulletin 2025/23 (21) Application number: 23748622.0 (22) Date of filing: 26.07.2023

(51) International Patent Classification (IPC):  C05F 11/00(2006.01) B01D 61/02(2006.01) B01D 61/14(2006.01) A01N 65/03(2009.01) A01P 21/00(2006.01) B01D 61/58(2006.01) (52) Cooperative Patent Classification (CPC): C05F 11/00; A01N 65/03; B01D 61/029; B01D 61/025; B01D 61/027; B01D 61/58; B01D 61/145; B01D 61/147; B01D 2311/2642; B01D 2311/04; B01D 2317/025; B01D 2311/2512; A01P 21/00   C-Sets: B01D 2311/04, B01D 2311/2642; A01N 65/03, A01N 25/04; (86) International application number: PCT/NL2023/050402 (87) International publication number: WO 2024/025417 (01.02.2024 Gazette 2024/05)

(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: 26.07.2022 EP 22187049 (71) Applicant: Kelp Blue Biotech B.V. 3708 JA Zeist (NL)	(72) Inventors: PENNING, Maxime 3708 JA Zeist (NL) MEIJER, Okke 3708 JA Zeist (NL) (74) Representative: V.O.  P.O. Box 87930 2508 DH Den Haag 2508 DH Den Haag (NL)