(19)
(11) EP 4 816 328 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 24805333.2

(22) Date of filing: 29.10.2024
(51) International Patent Classification (IPC): 
C03C 3/06(2006.01)
C03C 27/06(2006.01)
C03C 4/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C03C 3/06; C03C 27/06; C03C 2201/23; C03C 2201/42; C03C 4/0071
(86) International application number:
PCT/US2024/053357
(87) International publication number:
WO 2025/117115 (05.06.2025 Gazette 2025/23)
(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: 29.11.2023 US 202363603792 P

(71) Applicant: Corning Incorporated
Corning, New York 14831 (US)

(72) Inventors:
  • CAMPION, Michael John
    Corning, New York 14830 (US)
  • HRDINA, Kenneth Edward
    Horseheads, New York 14845 (US)
  • MCLAREN, Pattarin
    Corning, New York 14830 (US)
  • TOMFORD, David M.
    Colton, New York 13625 (US)

(74) Representative: Elkington and Fife LLP 
Prospect House 8 Pembroke Road
Sevenoaks, Kent TN13 1XR
Sevenoaks, Kent TN13 1XR (GB)

   


(54) GLASS ARTICLES WITH INCREASED HYDROXYL GROUP UNIFORMITY COMPRISING STACK SEALED GLASS SUBSTRATES, AND METHODS OF FORMING THE SAME