(19)

(11)

EP 4 823 998 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24828995.1 (22) Date of filing: 12.12.2024

(51) International Patent Classification (IPC):  C03C 17/34(2006.01) C23C 14/00(2006.01) (52) Cooperative Patent Classification (CPC): C03C 17/3417; C03C 2217/948; C23C 14/086 (86) International application number: PCT/US2024/059759 (87) International publication number: WO 2025/128814 (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 US 202363609541 P 11.12.2024 US 202418976425 (71) Applicant: Vitro Flat Glass LLC Cheswick PA 15024 (US)	(72) Inventor: FISHER, Patrick Cheswick, Pennsylvania 15024 (US) (74) Representative: f & e patent  Braunsberger Feld 29 51429 Bergisch Gladbach 51429 Bergisch Gladbach (DE)