Inventor
O'BRIEN JOSEPH P
US13 patents
⚠️ This page may combine multiple inventors who share the name “O'BRIEN JOSEPH P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COOPER EDWIN INC
9 patentsUS4505834AMar 19, 1985
Lubricating oil compositions containing graft copolymer as viscosity index improver-dispersant
COOPER EDWIN INC55 citations96
US4204969AMay 27, 1980
Lubricant composition containing sulfurized olefin extreme pressure additive
COOPER EDWIN INC62 citations96
US4519929AMay 28, 1985
Lubricating oil composition containing N-allyl amide graft copolymers
COOPER EDWIN INC19 citations82
US4325827AApr 20, 1982
Fuel and lubricating compositions containing N-hydroxymethyl succinimides
COOPER EDWIN INC19 citations82
US4331545AMay 25, 1982
Lubricating compositions containing boronated N-alkanol hydrocarbylamide
COOPER EDWIN INC14 citations73
US4448974AMay 15, 1984
Polyalkylene succinimide lubricant additives
COOPER EDWIN INC3 citations62
US4246125AJan 20, 1981
Lubricating oil and fuel composition
COOPER EDWIN INC2 citations62
US4237020ADec 2, 1980
Lubricating and fuel compositions containing succinimide friction reducers
COOPER EDWIN INC3 citations62
US4225449ASep 30, 1980
Lubricating oil and fuel compositions
COOPER EDWIN INC1 citations52