Inventor
RITCHIE ANDREW J D
US8 patents
⚠️ This page may combine multiple inventors who share the name “RITCHIE ANDREW J D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INFINEUM INT LTD
5 patentsUS6869919B2Mar 22, 2005
Lubricating oil compositions
INFINEUM INT LTD34 citations90
US6715473B2Apr 6, 2004
EGR equipped diesel engines and lubricating oil compositions
INFINEUM INT LTD40 citations90
US11034912B2Jun 15, 2021
Lubricating oil compositions
INFINEUM INT LTD23 citations89
US7018958B2Mar 28, 2006
Lubricating oil compositions
INFINEUM INT LTD32 citations88
US12522779B2Jan 13, 2026
Method for reduction of abnormal combustion events
INFINEUM INT LTD0 citations42
EXXON CHEMICAL PATENTS INC
3 patentsUS5232614AAug 3, 1993
Lubricating oil compositions and additives for use therein
EXXON CHEMICAL PATENTS INC62 citations94
US6310010B1Oct 30, 2001
High molecular weight dispersant compositions and their preparation
EXXON CHEMICAL PATENTS INC33 citations88
US5994277ANov 30, 1999
Lubricating compositions with improved antioxidancy comprising added copper, a molybdenum containing compound, aromatic amine and ZDDP
EXXON CHEMICAL PATENTS INC48 citations88