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(11)

EP 4 823 797 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24829074.4 (22) Date of filing: 12.12.2024

(51) International Patent Classification (IPC):  B24B 53/053(2006.01) B23D 43/04(2006.01) B24B 53/06(2006.01) B24B 53/07(2006.01) B24D 5/06(2006.01) B23D 43/02(2006.01) B23D 43/06(2006.01) B24B 53/065(2006.01) B24B 53/075(2006.01) B24D 7/06(2006.01) (52) Cooperative Patent Classification (CPC): B24B 53/053; B24B 53/062; B24B 53/065; B24B 53/07; B24B 53/075; B24D 5/06; B24D 7/06 (86) International application number: PCT/EP2024/085849 (87) International publication number: WO 2025/125397 (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: 13.12.2023 GB 202319013 (71) Applicant: Element Six (UK) Limited Didcot, Oxfordshire OX11 0QR (GB)	(72) Inventors: PENNA FRANCA, Luiz Fernando Didcot Oxfordshire OX11 0QR (GB) CHILDERHOUSE, Thomas Mark Didcot Oxfordshire OX11 0QR (GB) LUPTON, Gregory Mulgrave, Victoria 3170 (AU) (74) Representative: Reeve, Anna Elizabeth et al Element Six (UK) Limited Group Intellectual Property Global Innovation Centre Harwell Oxford Didcot Oxfordshire OX11 0QR Didcot Oxfordshire OX11 0QR (GB)