(19)

(11)

EP 4 770 817 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24850247.8 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  B22F 10/25(2021.01) B33Y 40/00(2020.01) B22F 12/00(2021.01) B23B 3/16(2006.01) B33Y 50/02(2015.01) B23K 31/02(2006.01) B33Y 30/00(2015.01) B22F 10/85(2021.01) B22F 12/90(2021.01) B23P 23/04(2006.01) B22F 12/82(2021.01) B23K 26/34(2014.01) (52) Cooperative Patent Classification (CPC): B23K 31/02; B33Y 30/00; B22F 10/25; B33Y 40/00; B22F 12/90; B22F 10/85; B33Y 50/02; B23P 23/04; B22F 12/22; B22F 12/82; B25J 11/005; B25J 19/021 (86) International application number: PCT/SK2024/050017 (87) International publication number: WO 2025/128008 (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 SK PP1592023 (71) Applicant: Slovenská Technická Univerzita v Bratislave 811 07 Bratislava-Staré Mesto (SK)	(72) Inventors: MATUS, Milos Dunajska Luzna (SK) PAJTINKA, Lukas Trebichava (SK) (74) Representative: inventa Patentova a znamkova kancelaria s.r.o.  Palisády 50 811 06 Bratislava 811 06 Bratislava (SK)