ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,849, issued on Feb. 10, was assigned to INNOSPEC Ltd. (Great Britain).
"Fuel compositions" was invented by Jacqueline Reid (Ellesmere, Great Britain), Martin Roberts (Ellesmere, Great Britain), Alan Ross (Ellesmere, Great Britain) and Michael James Simms (Ellesmere, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A diesel fuel composition including (a) a quaternary ammonium salt additive; and (b) one or more nitrogen-free detergents; wherein the quaternary ammonium salt additive includes the quaternised reaction product of a hydrocarbyl substituted succinic acid derived acylating agent and a compound able to react with said acylating ag...