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(11)

EP 4 413 171 A1

(12)

(43) Date of publication: 14.08.2024 Bulletin 2024/33 (21) Application number: 21794318.2 (22) Date of filing: 06.10.2021

(51) International Patent Classification (IPC):  C21D 1/00(2006.01) C22C 38/12(2006.01) C21D 1/30(2006.01) C21D 8/06(2006.01) C22C 38/04(2006.01) C21D 8/04(2006.01) C22C 38/22(2006.01) C21D 6/00(2006.01) C21D 8/02(2006.01) C22C 38/14(2006.01) C21D 1/32(2006.01) C22C 38/02(2006.01) C21D 9/46(2006.01) C22C 38/18(2006.01) C22C 38/26(2006.01) (52) Cooperative Patent Classification (CPC): C22C 38/12; C22C 38/14; C21D 1/00; C21D 8/0226; C21D 2211/005; C21D 1/30; C21D 1/32; C22C 38/02; C22C 38/04; C22C 38/18; C22C 38/22; C22C 38/26; C21D 8/065; C21D 9/46; C21D 6/002; C21D 6/008; C21D 8/0273; C21D 8/0473 (86) International application number: PCT/EP2021/077627 (87) International publication number: WO 2023/057062 (13.04.2023 Gazette 2023/15)

(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 (71) Applicant: Vantage Alloys AG 6300 Zug (CH)	(72) Inventor: MIDDLETON, Aaron John 6300 Zug (CH) (74) Representative: AMMANN PATENTANWÄLTE AG  Schwarztorstrasse 31 3001 Bern 3001 Bern (CH)