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EP 4 476 376 A1

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(43) Date of publication: 18.12.2024 Bulletin 2024/51 (21) Application number: 23767773.7 (22) Date of filing: 11.03.2023

(51) International Patent Classification (IPC):  C22B 26/12(2006.01) C25C 5/02(2006.01) C25C 7/04(2006.01) C22B 3/02(2006.01) C25C 1/02(2006.01) C22B 3/26(2006.01) C25C 7/02(2006.01) (52) Cooperative Patent Classification (CPC): C25C 7/04; C25C 7/02; C22B 26/12; C25C 1/02; C22B 3/26; C25C 7/007; C22B 3/22 (86) International application number: PCT/US2023/064204 (87) International publication number: WO 2023/173133 (14.09.2023 Gazette 2023/37)

(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: 11.03.2022 US 202263319210 P 08.05.2022 US 202263339479 P (71) Applicant: Energy Exploration Technologies, Inc. Austin, TX 78754 (US)

(72) Inventors: HU, Michael, Z. Austin, Texas 78754 (US) PATWARDHAN, Amit Austin, Texas 78754 (US) GU, George, Y. Austin, Texas 78754 (US) KAPLIN, David Austin, Texas 78754 (US) GRUNDISH, Nicholas, S. Austin, Texas 78754 (US) CHEREDDY, Sumanth Austin, Texas 78754 (US) EGAN, Teague, M. Austin, Texas 78754 (US) (74) Representative: Abel & Imray LLP  Westpoint Building James Street West Bath BA1 2DA Bath BA1 2DA (GB)