(19)

(11)

EP 4 817 073 A2

(12)

(88) Date of publication A3: 30.10.2025 (43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24924190.2 (22) Date of filing: 13.11.2024

(51) International Patent Classification (IPC):  G21C 7/14(2006.01) G21C 3/54(2006.01) (52) Cooperative Patent Classification (CPC): Y02E 30/30; G21C 7/14; G21C 7/24 (86) International application number: PCT/US2024/055697 (87) International publication number: WO 2025/170657 (14.08.2025 Gazette 2025/33)

(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 202318522447 (71) Applicant: Natura Resources LLC Abilene, TX 79601 (US)	(72) Inventor: CLARNO, Kevin T. Abilene, TX 79601 (US) (74) Representative: Elkington and Fife LLP  Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)