ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,652, issued on Oct. 28, was assigned to INSTITUTO MEXICANO DEL PETROLEO (Mexico City).

"Alkylated, aminated and alkoxylated macromolecules with integrated trifunctional properties for the removal of petroleum emulsions" was invented by Cesar Andres Flores Sandoval (Mexico City), Flavio Salvador Vazquez Moreno (Mexico City), Fernando Alvarez Ramirez (Mexico City), Gerardo Zavala Olivares (Mexico City), Citlally Janinne Vargas Martinez (Mexico City), Jessica Valeria Fuentes Santiago (Mexico City), Edgar Benedicto Zamora Guerrero (Mexico City), Enrique Cevada Maya (Mexico City) and Erika Gomez Buendia (Mexico City).

According to the abstract* released by the U.S. Patent & Trademark ...