Inventor
MATTHEWS LEONARD A
US7 patents
⚠️ This page may combine multiple inventors who share the name “MATTHEWS LEONARD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEXACO INC
6 patentsUS4929373AMay 29, 1990
Process for preparing overbased calcium sulfonates
TEXACO INC7 citations72
US5108630AApr 28, 1992
Process for overbasing sulfonates comprising two separate additions of calcium oxide
TEXACO INC8 citations71
US5235067AAug 10, 1993
Continuous process for alkenyl succinimides
TEXACO INC13 citations70
US4997584AMar 5, 1991
Process for preparing improved overbased calcium sulfonate
TEXACO INC11 citations70
US5147414ASep 15, 1992
Process for producing ori control additives
TEXACO INC11 citations68
US4879053ANov 7, 1989
Process for preparing overbased calcium sulfonates
TEXACO INC14 citations68