(19)

(11)

EP 4 384 679 A1

(12)

(43) Date of publication: 19.06.2024 Bulletin 2024/25 (21) Application number: 22854816.0 (22) Date of filing: 13.07.2022

(51) International Patent Classification (IPC):  E04H 15/48(2006.01) E04H 15/44(2006.01) E04B 1/343(2006.01) (52) Cooperative Patent Classification (CPC): E04H 15/48 (86) International application number: PCT/CA2022/051090 (87) International publication number: WO 2023/015373 (16.02.2023 Gazette 2023/07)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 09.08.2021 US 202117397900 (71) Applicant: Weatherhaven Global Resources Ltd. Coquitlam, BC V3K 6W5 (CA)	(72) Inventors: JOHNSON, Brian D. Mill Bay, British Columbia V0R 2P2 (CA) SAVENKOFF, Ryan Douglas Vancouver, British Columbia V6B 6J3 (CA) CHRISTENSEN, Matt Vancouver, British Columbia V6P 6Z1 (CA) BENNETT, Jean-marc Surrey, British Columbia V3R 0T9 (CA) (74) Representative: Perani & Partners S.p.A.  Piazza Armando Diaz, 7 20123 Milano 20123 Milano (IT)