(19)
(11) EP 4 543 608 A1

(12)

(43) Date of publication:
30.04.2025 Bulletin 2025/18

(21) Application number: 22758097.4

(22) Date of filing: 27.07.2022
(51) International Patent Classification (IPC): 
B22C 7/02(2006.01)
B22C 9/04(2006.01)
B22C 9/24(2006.01)
 B22C 7/06(2006.01)
B22C 9/10(2006.01)
(52) Cooperative Patent Classification (CPC):
B22C 7/02; B22C 7/06; B22C 9/04; B22C 9/10; B22C 9/103; B22C 9/24
(86) International application number:
PCT/US2022/074169
(87) International publication number:
WO 2024/025596 (01.02.2024 Gazette 2024/05)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(71) Applicant: Siemens Energy, Inc.
Orlando, FL 32826 (US)

(72) Inventors:
  • DORAN, Ian T.
    Charlottesville, Virginia 22901 (US)
  • MERRILL, Gary B.
    Orlando, Florida 32804 (US)
  • CHARLES, Louis
    Charlottesville, Virginia 22911 (US)

(74) Representative: Isarpatent 
Patent- und Rechtsanwälte Barth Hassa Peckmann & Partner mbB Friedrichstraße 31
80801 München
80801 München (DE)

   


(54) MULTIWALL CERAMIC CORE AND METHOD OF MAKING A MULTIWALL CERAMIC CORE USING A NON-SINTERABLE CERAMIC FUGITIVE