Inventor
CHRISOPE DOUGLAS R
US3 patents
Patents
3 patentsUS5089156AFeb 18, 1992
Ashless or low-ash synthetic base compositions and additives therefor
ETHYL PETROLEUM ADDITIVES INC73 citations94
US5387346AFeb 7, 1995
Automatic transmission fluids and additives therefor
ETHYL PETROLEUM ADDITIVES INC20 citations90
US5360562ANov 1, 1994
Ashless or low-ash synthetic base compositions and additives therefor
ETHYL PETROLEUM ADDITIVES INC29 citations90