(19)
(11) EP 4 034 614 A1

(12)

(43) Date of publication:
03.08.2022 Bulletin 2022/31

(21) Application number: 20764711.6

(22) Date of filing: 18.08.2020
(51) International Patent Classification (IPC): 
C10L 1/185(2006.01)
C10L 1/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C10L 1/003; C10L 1/1852; C10L 1/1855; C10L 2230/16; C10L 2200/0423; C10L 2200/0446; C10L 2200/0469
(86) International application number:
PCT/GB2020/051967
(87) International publication number:
WO 2021/058935 (01.04.2021 Gazette 2021/13)
(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: 23.09.2019 GB 201913663

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

(72) Inventor:
  • MCCALLIEN, Duncan
    Durham Billingham Cleveland TS23 4ED (GB)

(74) Representative: Atkinson, Ian Anthony 
Johnson Matthey Technology Centre Blount's Court Sonning Common
Reading RG4 9NH
Reading RG4 9NH (GB)

   


(54) TRACERS AND METHOD OF MARKING LIQUIDS