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(11)

EP 4 356 387 A1

(12)

(43) Date of publication: 24.04.2024 Bulletin 2024/17 (21) Application number: 22824420.8 (22) Date of filing: 16.06.2022

(51) International Patent Classification (IPC):  G16C 20/70(2019.01) G16C 20/00(2019.01) (52) Cooperative Patent Classification (CPC): G06N 7/01; G05B 17/02; G06N 20/00 (86) International application number: PCT/IB2022/055566 (87) International publication number: WO 2022/264073 (22.12.2022 Gazette 2022/51)

(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: 16.06.2021 AU 2021901802 (71) Applicant: Rio Tinto Alcan International Limited Montréal, QC H3B 0E3 (CA)	(72) Inventors: COOK, Amy Montréal, Québec H3B OE3 (CA) GILLESPIE, Alistair Montréal, Québec H3B OE3 (CA) DURRANT-WHYTE, Hugh Melbourne, Victoria 3000 (AU) (74) Representative: Taylor, Gail et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)