Inventor
BIGGS ROBERT T
US9 patents
Patents
9 patentsUS5356999AOct 18, 1994
Multifunctional viscosity index improvers based on polymers containing sulfonamides
TEXACO INC23 citations92
US5094766AMar 10, 1992
Dispersant-antioxidant viscosity index improver
TEXACO INC30 citations92
US5424366AJun 13, 1995
Multifunctional viscosity index improver containing phenothiazine
TEXACO INC13 citations73
US5374364ADec 20, 1994
Multifunction viscosity index improvers
TEXACO INC8 citations73
US5200100AApr 6, 1993
Multifunctional viscosity index improver containing phenothiazine
TEXACO INC5 citations73
US5021177AJun 4, 1991
Dispersant-antioxidant multifunctional viscosity index improver
TEXACO INC9 citations73
US5275746AJan 4, 1994
Multifunctional viscosity index improver containing phenothiazine
TEXACO INC6 citations62
US5135671AAug 4, 1992
Multifunctional viscosity index improver containing units from unsaturated chlorides and aromatic amines
TEXACO INC2 citations62
US4948524AAug 14, 1990
Dispersant anti-oxidant VI improver and lubricating oil composition containing same
TEXACO INC5 citations62