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(11)

EP 4 054 358 A1

(12)

(43) Date of publication: 14.09.2022 Bulletin 2022/37 (21) Application number: 20804643.3 (22) Date of filing: 06.11.2020

(51) International Patent Classification (IPC):  A24D 3/02(2006.01) A24D 3/17(2020.01) A24D 3/06(2006.01) (52) Cooperative Patent Classification (CPC): A24D 3/0279; A24D 3/0283; A24D 3/17; A24D 3/061; A24D 3/10; A24B 15/283 (86) International application number: PCT/GB2020/052809 (87) International publication number: WO 2021/090012 (14.05.2021 Gazette 2021/19)

(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: 06.11.2019 GB 201916165 21.07.2020 GB 202011277 (71) Applicant: Essentra Filter Products Development Co. Pte. Ltd. Singapore 068877 (SG)	(72) Inventors: GREGG, Michael Singapore 068877 (SG) RAHMAN, Arief Singapore 068877 (SG) QOLBI, Rosi Ana Singapore 068877 (SG) WIDIARTO, Sudirman Singapore 068877 (SG) BAKIN, Wuryanto Singapore 068877 (SG) WIDODO, Sulistyo Singapore 068877 (SG) (74) Representative: Mummery, Thomas Zack  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)