(19)

(11)

EP 4 479 202 A1

(12)

(43) Date of publication: 25.12.2024 Bulletin 2024/52 (21) Application number: 23712377.3 (22) Date of filing: 17.02.2023

(51) International Patent Classification (IPC):  B21C 37/15(2006.01) B32B 15/082(2006.01) B05D 7/00(2006.01) B32B 15/20(2006.01) F16L 9/14(2006.01) B32B 1/08(2006.01) B32B 15/092(2006.01) B32B 15/18(2006.01) C23C 28/00(2006.01) (52) Cooperative Patent Classification (CPC): B21C 37/154; C23C 28/322; C23C 28/34; B05D 7/14; B05D 2202/10; B05D 2202/25; B05D 2254/02; B05D 2350/65; B05D 2504/00; B05D 2506/10; B05D 2601/20; F16L 9/02 (86) International application number: PCT/US2023/013295 (87) International publication number: WO 2023/158790 (24.08.2023 Gazette 2023/34)

(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: KH MA MD TN (30) Priority: 17.02.2022 US 202263311111 P 16.02.2023 US 202318110584 (71) Applicant: Martinrea International US Inc. Auburn Hills, Michigan 48326 (US)	(72) Inventors: BANERJI, Anindya Windsor, Ontario N8P 1P8 (CA) CHANDRASEKHAR, Murali Rochester, Michigan 48307 (US) DOBLE, Cory Ortonville, Michigan 48462 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)