(19)

(11)

EP 4 771 302 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24762624.5 (22) Date of filing: 27.08.2024

(51) International Patent Classification (IPC):  F16L 1/20(2006.01) F16L 29/04(2006.01) E21B 41/04(2006.01) E21B 1/00(2006.01) B63C 11/52(2006.01) E21B 43/013(2006.01) (52) Cooperative Patent Classification (CPC): F16L 29/04; F16L 2201/10; F16L 1/20; F16L 1/265; E21B 41/04; E21B 43/013 (86) International application number: PCT/EP2024/073913 (87) International publication number: WO 2025/045874 (06.03.2025 Gazette 2025/10)

(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: 30.08.2023 GB 202313216 (71) Applicant: MSCM Limited High Wycombe, Buckinghamshire HP12 3TA (GB)	(72) Inventors: MENSAH, Jonathan Michael Leuvan Buckinghamshire HP21 3TA (GB) FIELD, Jonathan Robert Alexander Buckinghamshire HP21 3TA (GB) (74) Representative: Dolleymores  9 Rickmansworth Road Watford, Hertfordshire WD18 0JU Watford, Hertfordshire WD18 0JU (GB)