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(11)

EP 4 493 333 A1

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(43) Date of publication: 22.01.2025 Bulletin 2025/04 (21) Application number: 23771340.9 (22) Date of filing: 14.03.2023

(51) International Patent Classification (IPC):  B21C 23/00(2006.01) B21C 23/22(2006.01) B21C 23/04(2006.01) B21C 25/02(2006.01) (52) Cooperative Patent Classification (CPC): B21C 25/02; B21C 23/002; B21C 23/08; B21C 23/085; B21C 33/00; B21C 23/20; B21C 23/205; B21C 33/004 (86) International application number: PCT/US2023/015228 (87) International publication number: WO 2023/177693 (21.09.2023 Gazette 2023/38)

(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: KH MA MD TN (30) Priority: 17.03.2022 US 202263320874 P (71) Applicant: Battelle Memorial Institute Richland, WA 99352 (US)

(72) Inventors: KAPPAGANTULA, Keerti, S. Richland, WA 99353 (US) GRANT, Glenn, J. Benton City, WA 99320 (US) NITTALA, Aditya, K. Richland, WA 99354 (US) LI, Xiao Richland, WA 99352 (US) REZA-E-RABBY, Md. West Richland, WA 99353 (US) CHOI, WoongJo Richland, WA 99352 (US) GWALANI, Bharat Cary, NC 27518 (US) SILVERSTEIN, Joshua, A. Richland, WA 99354 (US) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)