(19)

(11)

EP 4 298 272 A1

(12)

(43) Date of publication: 03.01.2024 Bulletin 2024/01 (21) Application number: 22712042.5 (22) Date of filing: 25.02.2022

(51) International Patent Classification (IPC):  D01B 1/36(2006.01) D01B 5/04(2006.01) (52) Cooperative Patent Classification (CPC): D01B 1/36; D01B 5/04 (86) International application number: PCT/IB2022/051669 (87) International publication number: WO 2022/180585 (01.09.2022 Gazette 2022/35)

(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: 25.02.2021 BE 202105134 (71) Applicant: Cretes NV 8560 Gullegem (BE)	(72) Inventor: VAN PUYVELDE, Dirk 8560 Gullegem (BE) (74) Representative: Brantsandpatents bv  Pauline Van Pottelsberghelaan 24 9051 Ghent 9051 Ghent (BE)