(19)
(11) EP 4 505 001 A1

(12)

(43) Date of publication:
12.02.2025 Bulletin 2025/07

(21) Application number: 23750692.8

(22) Date of filing: 21.07.2023
(51) International Patent Classification (IPC): 
C25D 3/50(2006.01)
(52) Cooperative Patent Classification (CPC):
C25D 3/50
(86) International application number:
PCT/GB2023/051927
(87) International publication number:
WO 2024/028570 (08.02.2024 Gazette 2024/06)
(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: 04.08.2022 US 202263395145 P
30.08.2022 GB 202212504

(71) Applicant: Johnson Matthey Public Limited Company
London EC4A 4AB (GB)

(72) Inventors:
  • BOARDMAN, Alan
    Reading Berkshire RG4 9NH (GB)
  • KREIGER, David Ian James
    West Deptford, New Jersey 08066 (US)
  • POWELL, Nigel
    Reading Berkshire RG4 9NH (GB)

(74) Representative: Johnson Matthey Plc 
Intellectual Property Department Belasis Avenue
Billingham TS23 1LB
Billingham TS23 1LB (GB)

   


(54) METHOD OF MANUFACTURING A PLATINUM COMPLEX FOR PLATING