(19)

(11)

EP 4 539 965 A1

(12)

(43) Date of publication: 23.04.2025 Bulletin 2025/17 (21) Application number: 23822571.8 (22) Date of filing: 14.06.2023

(51) International Patent Classification (IPC):  B01D 53/68(2006.01) B01D 53/02(2006.01) (52) Cooperative Patent Classification (CPC): B01D 53/0407; B01D 53/0415; B01D 2257/708; B01D 2259/4533; A61M 16/0093; A61M 2209/084; A61M 2205/3393; A61M 2202/0241; A61M 16/0051; A61M 2230/437; A61M 2205/7581; A61M 2205/18; A61M 16/202; A61M 2205/3553; A61M 16/022 (86) International application number: PCT/CA2023/050822 (87) International publication number: WO 2023/240350 (21.12.2023 Gazette 2023/51)

(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: 15.06.2022 US 202263352473 P (71) Applicant: Blue-Zone Technologies Ltd. Concord, Ontario L4K 3C1 (CA)	(72) Inventors: BUL, Yong Concord, Ontario L4K 3C1 (CA) FILIPOVIC, Dusanka Concord, Ontario L4K 3C1 (CA) WILLISTON, Matthew Concord, Ontario L4K 3C1 (CA) (74) Representative: Ipey  Apex House Thomas Street Trethomas Caerphilly CF83 8DP Caerphilly CF83 8DP (GB)