Dennis J. Malfer

Additives for minimizing intake valve deposits, and their use

Diesel fuel and dispersant compositions and methods for making and using same

Fuels compositions containing polybutenes of narrow molecular weight distribution

Friction modifier alkoxyamine salts of carboxylic acids as additives for fuel compositions and methods of use thereof

Additives for fuel compositions to reduce formation of combustion chamber deposits

Secondary amine mannich detergents

Deposit control additives for direct injection gasoline engines

Deposit control additive for direct injection gasoline engines

Fuel compositions and additives containing polybutenes of narrow molecular weight distribution

Spent acid purification process