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(11)

EP 4 816 570 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24805404.1 (22) Date of filing: 31.10.2024

(51) International Patent Classification (IPC):  C22B 3/22(2006.01) C01D 15/08(2006.01) C22B 3/42(2006.01) C01D 15/02(2006.01) C22B 3/24(2006.01) C22B 26/12(2006.01) (52) Cooperative Patent Classification (CPC): C22B 26/12; C22B 3/42; C22B 3/24; C22B 3/22; C01D 15/02; C01D 15/08; Y02P 10/20 (86) International application number: PCT/US2024/053996 (87) International publication number: WO 2025/117136 (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: 29.11.2023 US 202363604057 P (71) Applicant: ILiAD IP Company, LLC Carlsbad CA 92009 (US)	(72) Inventor: MARSTON, Charles R. Carlsbad, California 92009 (US) (74) Representative: Bradley, Josephine Mary  Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)