(19)
(11) EP 4 817 118 A1

(12)

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

(21) Application number: 24821698.8

(22) Date of filing: 21.11.2024
(51) International Patent Classification (IPC): 
H01P 3/12(2006.01)
H01P 11/00(2006.01)
(52) Cooperative Patent Classification (CPC):
H01P 3/121; H01P 11/002
(86) International application number:
PCT/US2024/056853
(87) International publication number:
WO 2025/117317 (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: 30.11.2023 US 202363604425 P

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

(72) Inventors:
  • TAYLOR, Mark Peter
    New York 14865 (US)
  • TRUTNA, William Richard
    Atherton, California 94027 (US)

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

   


(54) MATERIAL COMPOSITIONS AND WAVEGUIDE WIDTHS OF WAVEGUIDES