(19)
(11) EP 4 081 672 A1

(12)

(43) Date of publication:
02.11.2022 Bulletin 2022/44

(21) Application number: 20845479.3

(22) Date of filing: 23.12.2020
(51) International Patent Classification (IPC): 
C23C 22/34(2006.01)
C23C 22/83(2006.01)
(52) Cooperative Patent Classification (CPC):
C23C 2222/10; C23C 22/34; C23C 22/83; C23C 22/73
(86) International application number:
PCT/US2020/066754
(87) International publication number:
WO 2021/133863 (01.07.2021 Gazette 2021/26)
(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: 26.12.2019 US 201962953762 P

(71) Applicant: PRC-Desoto International, Inc.
Sylmar, California 91342 (US)

(72) Inventors:
  • POST, Gordon, L.
    Pittsburgh, PA 15243 (US)
  • MAYO, Michael, A.
    Pittsburgh, PA 15239 (US)
  • MARTIN, Justin, J.
    Harrison City, PA 15636 (US)
  • IBRAHIM, Abdulrahman, D.
    Wexford, PA 15090 (US)

(74) Representative: f & e patent 
Braunsberger Feld 29
51429 Bergisch Gladbach
51429 Bergisch Gladbach (DE)

   


(54) SYSTEMS AND METHODS FOR TREATING A METAL SUBSTRATE