(19)

(11)

EP 4 771 201 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 23950991.2 (22) Date of filing: 29.08.2023

(51) International Patent Classification (IPC):  C22C 9/00(2006.01) B22F 3/10(2006.01) C22C 1/04(2023.01) B22F 1/00(2022.01) (52) Cooperative Patent Classification (CPC): C22C 9/00; B22F 1/054; C22C 1/0425 (86) International application number: PCT/US2023/031342 (87) International publication number: WO 2025/048783 (06.03.2025 Gazette 2025/10)

(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 (71) Applicant: UNITED STATES OF AMERICA, as represented by THE SECRETARY OF THE ARMY Adelphi 20783-1138 (US)

(72) Inventors: DARLING, Kristopher, A. Havre De Grace, MD 21078 (US) HORNBUCKLE, Billy, C. Bel Air, MD 21014 (US) FULLENWIDER, Blake, P. Round Rock, TX 78665 (US) OSLIND, Albert, M. Aberdeen, MD 21001 (US) ROBERTS, Anthony, J. Chesapeake, MD 21915 (US) GIRI, Anit, K. Abington, MD 21009 (US) (74) Representative: Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte  Am Brauhaus 8 01099 Dresden 01099 Dresden (DE)