(19)
(11) EP 4 824 212 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24837150.2

(22) Date of filing: 13.12.2024
(51) International Patent Classification (IPC): 
C10M 169/04(2006.01)
C10N 20/02(2006.01)
C10N 30/00(2006.01)
C10N 10/04(2006.01)
C10N 40/25(2006.01)
(52) Cooperative Patent Classification (CPC):
C10N 2040/25; C10N 2020/02; C10M 2203/1025; C10M 2203/1006; C10M 2205/0285; C10N 2010/04; C10M 2223/045; C10M 2223/042; C10M 2219/046; C10N 2030/42; C10M 169/04; C10M 2219/044; C10M 2215/28; C10N 2030/44
 
C-Sets:
  1. C10M 2219/046, C10N 2010/04;
  2. C10M 2215/28, C10N 2060/14;
  3. C10M 2203/1025, C10N 2020/02;
  4. C10M 2223/042, C10N 2020/02;
  5. C10M 2223/045, C10N 2010/04;
  6. C10M 2223/042, C10N 2010/04;

(86) International application number:
PCT/IB2024/062628
(87) International publication number:
WO 2025/126133 (19.06.2025 Gazette 2025/25)
(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:
GE KH MA MD TN

(30) Priority: 14.12.2023 US 202363609993 P
06.12.2024 US 202418971578

(71) Applicant: Infineum International Limited
Abingdon, Oxfordshire OX13 6BD (GB)

(72) Inventors:
  • FEATHERSTONE, Thomas M.
    Abingdon, Oxfordshire OX13 6BD (GB)
  • RITCHIE, Andrew J.
    Linden, New Jersey 07036 (US)
  • MUTTER, Ellis
    Abingdon, Oxfordshire OX13 6BD (GB)
  • DRIVER, Mark P.
    Abingdon, Oxfordshire OX13 6BD (GB)
  • CHIRITA, Roxana
    Abingdon, Oxfordshire OX13 6BD (GB)

(74) Representative: Hart, Richard Joseph 
Infineum UK Ltd. Milton Hill Business & Technology Centre Milton Hill
Abingdon, Oxfordshire OX13 6BD
Abingdon, Oxfordshire OX13 6BD (GB)

   


(54) LUBRICANT COMPOSITIONS CONTAINING PHOSPHORUS FOR USE IN HYDROGEN FUELED ENGINES