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(11)

EP 4 824 452 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24905069.1 (22) Date of filing: 16.12.2024

(51) International Patent Classification (IPC):  F16K 5/06(2006.01) F16K 27/06(2006.01) F16K 5/20(2006.01) (52) Cooperative Patent Classification (CPC): F16K 27/067; F16K 5/0694; F16K 5/0636; F16K 41/026; F16K 5/0689; F16K 5/201 (86) International application number: PCT/US2024/060344 (87) International publication number: WO 2025/129171 (19.06.2025 Gazette 2025/25)

(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: 15.12.2023 US 202363610757 P 19.12.2023 US 202363612236 P 12.02.2024 US 202463552452 P (71) Applicant: Velan Inc. St-Laurent, Québec H4T 1G2 (CA)

(72) Inventors: LOURDEL, Nicolas Hervé François Montreal, Québec H4T 1G2 (CA) PAQUIN, Michel Sylvain Mario Montreal, Québec H4T 1G2 (CA) MAJOR, Paul Montreal, Québec H4T 1G2 (CA) PATEL, Ashit Mukeshbhai Montreal, Québec H4T 1G2 (CA) EL YACOUBI EL IDRISSI, Zakaria Mohamed Montreal, Québec H4T 1G2 (CA) JACOBS, Michael Joseph Montreal, Québec H4T 1G2 (CA) (74) Representative: Cleveland Scott York  5 Norwich Street London EC4A 1DR London EC4A 1DR (GB)