(19)
(11) EP 4 118 258 A1

(12)

(43) Date of publication:
18.01.2023 Bulletin 2023/03

(21) Application number: 21715723.9

(22) Date of filing: 11.03.2021
(51) International Patent Classification (IPC): 
C25D 11/04(2006.01)
C25D 11/08(2006.01)
(52) Cooperative Patent Classification (CPC):
C25D 11/08; C25D 11/04
(86) International application number:
PCT/US2021/021813
(87) International publication number:
WO 2021/183713 (16.09.2021 Gazette 2021/37)
(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: 12.03.2020 US 202062988857 P

(71) Applicant: Novelis, Inc.
Atlanta, GA 30326 (US)

(72) Inventors:
  • JOHNSON, Kevin Mark
    Kennesaw, Georgia 30144 (US)
  • MACFARLANE, Theresa Elizabeth
    Kennesaw, Georgia 30144 (US)
  • PARADIS, Brian
    Kennesaw, Georgia 30144 (US)
  • PULUGURTHA, Markondeyaraj
    Kennesaw, Georgia 30144 (US)

(74) Representative: Dey, Michael 
Weickmann & Weickmann Patent- und Rechtsanwälte PartmbB Postfach 860 820
81635 München
81635 München (DE)

   


(54) ELECTROLYTIC PROCESSING OF METALLIC SUBSTRATES