(19)
(11) EP 4 824 209 A1

(12)

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

(21) Application number: 24873893.2

(22) Date of filing: 27.11.2024
(51) International Patent Classification (IPC): 
C10M 163/00(2006.01)
C10N 10/04(2006.01)
C10N 20/00(2006.01)
C10N 20/04(2006.01)
C10N 30/02(2006.01)
C10N 40/25(2006.01)
 C10M 169/04(2006.01)
C10N 10/12(2006.01)
C10N 20/02(2006.01)
C10N 30/00(2006.01)
C10N 30/04(2006.01)
(52) Cooperative Patent Classification (CPC):
C10M 163/00; C10N 2030/02; C10N 2030/04; C10N 2030/42; C10N 2030/45; C10N 2030/52; C10N 2030/76; C10N 2040/25; C10M 169/045; C10M 2203/1006; C10M 2203/1025; C10M 2227/066; C10N 2020/02; C10M 2207/262; C10M 2207/028; C10M 2219/046; C10M 2223/045; C10N 2010/04; C10N 2010/12; C10M 2215/28; C10M 2217/06; C10M 2219/068; C10M 2215/064; C10M 2207/026; C10M 2219/024; C10M 2227/02; C10M 2227/04; C10M 2229/041; C10M 2229/042; C10M 2229/047; C10N 2020/073; C10N 2020/04
 
C-Sets:
  1. C10M 2219/046, C10N 2010/04;
  2. C10M 2219/068, C10N 2010/12;
  3. C10M 2215/28, C10N 2060/14;
  4. C10M 2223/045, C10N 2010/04;
  5. C10M 2207/262, C10N 2010/04;
  6. C10M 2207/028, C10N 2010/04;
(86) International application number:
PCT/IB2024/000675
(87) International publication number:
WO 2025/125893 (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 202363610014 P
15.11.2024 US 202418948730

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

(72) Inventors:
  • FEATHERSTONE, Thomas, M.
    Abingdon, Oxfordshire, ENG OX13 6BD (GB)
  • MUTTER, Ellis
    Abingdon, Oxfordshire, ENG OX13 6BD (GB)
  • CHIRITA, Roxana
    Abingdon, Oxfordshire, ENG OX13 6BD (GB)
  • RITCHIE, Andrew, J., D.
    Milton (US)

(74) Representative: Pedley, Michael Ewan 
Infineum UK Ltd. Legal Department Milton Hill Business And Technology Centre Milton Hill
Abingdon, Oxfordshire OX13 6BD
Abingdon, Oxfordshire OX13 6BD (GB)

   


(54) LUBRICANT COMPOSITIONS FOR REDUCED PRE-IGNITION IN HYDROGEN FUELED ENGINES