(19)

(11)

EP 4 401 909 A1

(12)

(43) Date of publication: 24.07.2024 Bulletin 2024/30 (21) Application number: 22802894.0 (22) Date of filing: 07.09.2022

(51) International Patent Classification (IPC):  B23K 9/16(2006.01) B23K 9/32(2006.01) B23K 9/29(2006.01) (52) Cooperative Patent Classification (CPC): B23K 9/16; B23K 9/291; B23K 9/325 (86) International application number: PCT/EP2022/025415 (87) International publication number: WO 2023/041192 (23.03.2023 Gazette 2023/12)

(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: 16.09.2021 EP 21020465 (71) Applicant: Linde GmbH 82049 Pullach (DE)	(72) Inventors: Siewert, Erwan 82049 Pullach (DE) Pfreuntner, Michael 82049 Pullach (DE) (74) Representative: Lu, Jing  Linde GmbH Intellectual Property EMEA Dr.-Carl-von-Linde-Straße 6-14 82049 Pullach 82049 Pullach (DE)