(19)

(11)

EP 4 405 078 A1

(12)

(43) Date of publication: 31.07.2024 Bulletin 2024/31 (21) Application number: 22785721.6 (22) Date of filing: 16.09.2022

(51) International Patent Classification (IPC):  B01D 33/06(2006.01) D06F 39/10(2006.01) B04B 1/06(2006.01) B04B 11/04(2006.01) (52) Cooperative Patent Classification (CPC): B01D 33/06; D06F 39/10; B04B 11/04; B04B 1/00 (86) International application number: PCT/EP2022/075861 (87) International publication number: WO 2023/046601 (30.03.2023 Gazette 2023/13)

(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 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: 21.09.2021 GB 202113446 (71) Applicant: Fresh Works Ltd. Bath Somerset BA1 7DE (GB)	(72) Inventor: JONES, Gareth Bath Somerset BA1 7DE (GB) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)