ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,555, issued on Dec. 16, was assigned to PETROLIAM NASIONAL BERHAD (PETRONAS) (Kuala Lumpur, Malaysia).

"Demulsifier" was invented by Nor Hadhirah Halim (Selangor, Malaysia), Farah Fazlina M Yasin (Selangor, Malaysia), Intan Khalida Salleh (Selangor, Malaysia) and Jamal Mohamad M Ibrahim (Selangor, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a demulsifier compound, formulations comprising the demulsifier compound, and methods for preparing the demulsifier compound."

The patent was filed on Nov. 24, 2021, under Application No. 18/253,728.

*For further information, including images, charts and tables, please visit: ...