US Patent Issued to PETROLIAM NASIONAL BERHAD (PETRONAS) on Nov. 18 for "Polymeric amphoteric surfactant compound" (Malaysian Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,322, issued on Nov. 18, was assigned to PETROLIAM NASIONAL BERHAD (PETRONAS) (Kuala Lumpur, Malaysia).

"Polymeric amphoteric surfactant compound" was invented by Normawati Samsodin (Kuala Lumpur, Malaysia), Sara Shahruddin (Kuala Lumpur, Malaysia), Nur Liyana Ismail (Kuala Lumpur, Malaysia), Navin Sharma Karam Chand (Kuala Lumpur, Malaysia) and Jun Xing Leong (Kuala Lumpur, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a polymeric amphoteric surfactant compound of formula (I)."

The patent was filed on March 31, 2021, under Application No. 17/915,843.

*For further information, including images, charts and tables, pleas...