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(11)

EP 4 816 078 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24895275.6 (22) Date of filing: 29.11.2024

(51) International Patent Classification (IPC):  B01D 35/02(2006.01) B01D 29/21(2006.01) B01D 29/13(2006.01) B01D 29/50(2006.01) (52) Cooperative Patent Classification (CPC): B01D 35/02; B01D 29/21; B01D 29/606; B01D 29/56 (86) International application number: PCT/CA2024/051599 (87) International publication number: WO 2025/111715 (05.06.2025 Gazette 2025/23)

(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: GE KH MA MD TN (30) Priority: 01.12.2023 US 202363604964 P (71) Applicant: NCS Multistage Inc. Calgary, Alberta T2C 4X5 (CA)	(72) Inventor: GILLIS, Brock Calgary, Alberta T2C 4X5 (CA) (74) Representative: Acapo Onsagers AS  Edvard Griegs vei 1 5059 Bergen 5059 Bergen (NO)