(19)

(11)

EP 4 817 365 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24827250.2 (22) Date of filing: 29.11.2024

(51) International Patent Classification (IPC):  H05K 5/06(2006.01) (52) Cooperative Patent Classification (CPC): Y02E 60/10; H05K 5/063 (86) International application number: PCT/NO2024/050265 (87) International publication number: WO 2025/116741 (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 NO 20231304 (71) Applicant: Surfact AS 0491 Oslo (NO)	(72) Inventors: HELSETH, Alf Edvard 2319 Hamar (NO) PARBORG, Nils Henrik 1911 Flateby (NO) (74) Representative: LIGL IP Consult AS  Fridtjof Nansens plass 4 0160 Oslo 0160 Oslo (NO)