(19)

(11)

EP 4 479 580 A2

(12)

(88) Date of publication A3: 15.06.2023 (43) Date of publication: 25.12.2024 Bulletin 2024/52 (21) Application number: 22890893.5 (22) Date of filing: 07.11.2022

(51) International Patent Classification (IPC):  C25C 3/08(2006.01) C25C 3/24(2006.01) C25C 3/12(2006.01) (52) Cooperative Patent Classification (CPC): C25C 3/08; C25C 3/125 (86) International application number: PCT/US2022/049160 (87) International publication number: WO 2023/081480 (11.05.2023 Gazette 2023/19)

(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: KH MA MD TN (30) Priority: 17.02.2022 US 202263311374 P (71) Applicant: Elysis Limited Partnership Montreal, QC H3B 3M5 (CA)	(72) Inventors: LIU, Xinghua Murrysville, Pennsylvania 15668 (US) MOSSER, Benjamin D. Pittsburgh, Pennsylvania 15239 (US) (74) Representative: Cabinet Beau de Loménie  158, rue de l'Université 75340 Paris Cedex 07 75340 Paris Cedex 07 (FR)