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(11)

EP 4 496 642 A1

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(43) Date of publication: 29.01.2025 Bulletin 2025/05 (21) Application number: 23705989.4 (22) Date of filing: 16.02.2023

(51) International Patent Classification (IPC):  B01D 46/00(2022.01) B01D 46/52(2006.01) B01D 46/10(2006.01) (52) Cooperative Patent Classification (CPC): B01D 46/0005; B01D 46/10; B01D 46/521; B01D 46/0002; B01D 2265/025; B01D 2265/026 (86) International application number: PCT/EP2023/053820 (87) International publication number: WO 2023/179976 (28.09.2023 Gazette 2023/39)

(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: 22.03.2022 DE 102022106702 (71) Applicant: MANN+HUMMEL GmbH 71636 Ludwigsburg (DE)	(72) Inventors: JUNGINGER, Bernd 70565 Stuttgart (DE) THEBAULT, Eric 71640 Ludwigsburg (DE) DOS SANTOS ASCENSAO, Macario Francisco 71696 Möglingen (DE) (74) Representative: Mann + Hummel Intellectual Property  Mann + Hummel International GmbH & Co. KG Schwieberdinger Straße 126 71636 Ludwigsburg 71636 Ludwigsburg (DE)