Inventor
RIPPLE DAVID E
US14 patents
Patents
14 patentsUS4904401AFeb 27, 1990
Lubricating oil compositions
LUBRIZOL CORP136 citations97
US4981602AJan 1, 1991
Lubricating oil compositions and concentrates
LUBRIZOL CORP66 citations96
US4957649ASep 18, 1990
Lubricating oil compositions and concentrates
LUBRIZOL CORP68 citations95
US4938881AJul 3, 1990
Lubricating oil compositions and concentrates
LUBRIZOL CORP75 citations95
US6596672B1Jul 22, 2003
Low ash lubricant compositions containing multiple overbased materials and multiple antioxidants
LUBRIZOL CORP53 citations92
US5328620AJul 12, 1994
Oil additive package useful in diesel engine and transmission lubricants
LUBRIZOL CORP36 citations92
US5259967ANov 9, 1993
Low ash lubricant composition
LUBRIZOL CORP39 citations92
US5202036AApr 13, 1993
Diesel lubricants and methods
LUBRIZOL CORP35 citations92
US5674819AOct 7, 1997
Carboxylic compositions, derivatives,lubricants, fuels and concentrates
LUBRIZOL CORP14 citations73
US4456538AJun 26, 1984
Process for preparing molybdenum-containing compositions useful for improved fuel economy of internal combustion engines
LUBRIZOL CORP8 citations73
US4194886AMar 25, 1980
Haloalkyl hydroxy-aromatic condensation products as fuel additives
LUBRIZOL CORP16 citations73
US4186157AJan 29, 1980
Phosphorus-containing reaction mixture
LUBRIZOL CORP3 citations62
US4179449ADec 18, 1979
Haloalkyl hydroxy-aromatic condensation products as fuel and lubricant additives
LUBRIZOL CORP0 citations41
US4176077ANov 27, 1979
Haloalkyl hydroxy-aromatic condensation products as lubricant additives
LUBRIZOL CORP0 citations41