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EP 4 816 624 A1

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(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24898339.7 (22) Date of filing: 28.11.2024

(51) International Patent Classification (IPC):  E04F 15/02(2006.01) E04F 15/10(2006.01) E04C 2/20(2006.01) (52) Cooperative Patent Classification (CPC): E04F 15/02038; E04F 2201/0115; E04F 2201/0146; E04F 2201/0161; E04F 15/105; E04F 15/107 (86) International application number: PCT/SE2024/051014 (87) International publication number: WO 2025/116806 (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: 30.11.2023 SE 2351376 11.10.2024 WO PCT/SE2024/050875 (71) Applicant: Välinge Innovation AB 263 64 Viken (SE)	(72) Inventor: NILSSON, Anders 256 56 Helsingborg (SE) (74) Representative: Välinge Innovation AB  Patent Department Prästavägen 513 263 64 Viken 263 64 Viken (SE)