ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,989, issued on Nov. 11, was assigned to PETROLIAM NASIONAL BERHAD (PETRONAS) (Kuala Lumpur, Malaysia).

"Microemulsions and uses thereof" was invented by Sanjay Misra (Kuala Lumpur, Malaysia), Jamal Mohamed Ibrahim (Kuala Lumpur, Malaysia) and Intan Khalida Saleh (Kuala Lumpur, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention generally relates to microemulsions comprising a compound of Formula (I), a solvent, a surfactant and optionally a co-surfactant disclosed herein, wherein the ratio of the surfactant to the co-surfactant is about 100:0 to about 20:90. The disclosed microemulsions may be useful in preventing or removi...