(19)

(11)

EP 4 824 367 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24837772.3 (22) Date of filing: 12.12.2024

(51) International Patent Classification (IPC):  E03F 1/00(2006.01) (52) Cooperative Patent Classification (CPC): E03F 1/003 (86) International application number: PCT/US2024/059858 (87) International publication number: WO 2025/128874 (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: 14.12.2023 US 202318540400 (71) Applicant: Advanced Drainage Systems, Inc. Hilliard, OH 43026 (US)	(72) Inventor: MILLER, Adam Haddam, Connecticut 06438 (US) (74) Representative: Finnegan Europe LLP  1 London Bridge London SE1 9BG London SE1 9BG (GB)