(19)

(11)

EP 4 771 225 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24860940.6 (22) Date of filing: 28.08.2024

(51) International Patent Classification (IPC):  E01C 19/40(2006.01) E01C 19/48(2006.01) E01C 19/42(2006.01) (52) Cooperative Patent Classification (CPC): E01C 19/486; E01C 19/288 (86) International application number: PCT/US2024/044214 (87) International publication number: WO 2025/049596 (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: GE KH MA MD TN (30) Priority: 28.08.2023 US 202363579282 P (71) Applicant: Axenox, LLC. Powell, WY 82435 (US)	(72) Inventors: FROST, Stuart Anthony Powell, Wyoming 82435 (US) FROST, David Michael Powell, Wyoming 82435 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)