(19)
(11) EP 4 816 862 A1

(12)

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

(21) Application number: 24827361.7

(22) Date of filing: 22.11.2024
(51) International Patent Classification (IPC): 
G02B 6/02(2006.01)
G02B 6/036(2006.01)
(52) Cooperative Patent Classification (CPC):
G02B 6/02042; G02B 6/03616; G02B 6/02019
(86) International application number:
PCT/US2024/057038
(87) International publication number:
WO 2025/117360 (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: 01.12.2023 US 202363605125 P

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

(72) Inventors:
  • BUTLER, Douglas Llewellyn
    Painted Post, New York 14870 (US)
  • MATTHEWS, III, Hazel Benton
    Wilmington, North Carolina 28403 (US)
  • MISHRA, Snigdharaj Kumar
    Wilmington, North Carolina 28409 (US)
  • RANEY, Sonya Marie
    Wrightsville Beach, North Carolina 28480 (US)
  • STAINER, Darren Andrew
    Wilmington, North Carolina 28403 (US)
  • TANDON, Pushkar
    Painted Post, New York 14870 (US)

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

   


(54) MULTICORE OPTICAL FIBER WITH HETEROGENEOUS CORE ELEMENTS