Inventor
ERDMAN TIMOTHY R
US16 patents
Patents
16 patentsUS4746446AMay 24, 1988
Modified succinimides
CHEVRON RES78 citations96
US4648980AMar 10, 1987
Hydrocarbon soluble nitrogen containing dispersant - fluorophosphoric acid adducts
CHEVRON RES111 citations95
US4927551AMay 22, 1990
Lubricating oil compositions containing a combination of a modified succinimide and a Group II metal overbased sulfurized alkylphenol
CHEVRON RES48 citations92
US4747971AMay 31, 1988
Hydrocarbon soluble nitrogen containing dispersant - fluorophosphoric acid adducts
CHEVRON RES29 citations92
US4615826AOct 7, 1986
Hydrocarbon soluble nitrogen containing dispersant-fluorophosphoric acid adducts
CHEVRON RES32 citations92
US4406803ASep 27, 1983
Method for improving fuel economy of internal combustion engines
CHEVRON RES29 citations92
US4410437AOct 18, 1983
Amine substituted hydrocarbon polymer dispersant lubricating oil additives
CHEVRON RES19 citations81
US4840744AJun 20, 1989
Modified succinimides and lubricating oil compositions containing the same
CHEVRON RES10 citations73
US4713190ADec 15, 1987
Modified carboxylic amide dispersants
CHEVRON RES7 citations73
US4584112AApr 22, 1986
Fuel-efficient lubricating oil
CHEVRON RES6 citations73
US4376056AMar 8, 1983
Fuel economy in internal combustion engines
CHEVRON RES17 citations73
US4336149AJun 22, 1982
Fuel economy in internal combustion engines
CHEVRON RES11 citations73
US4331222AMay 25, 1982
Method for reducing brake noise in oil-immersed disc brakes
CHEVRON RES17 citations73
US4275006AJun 23, 1981
Process of preparing dispersant lubricating oil additives
CHEVRON RES5 citations62
US4548722AOct 22, 1985
Dispersant lubricating oil additives
CHEVRON RES0 citations51
US4521319AJun 4, 1985
Dispersant lubricating oil additives
CHEVRON RES0 citations51