US Patent Issued to PETROLEO BRASILEIRO S.A.-PETROBRAS, UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE on Nov. 11 for "Microemulsion systems for extraction and displacement of oil in sandstone rocks" (Brazilian Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,017, issued on Nov. 11, was assigned to PETROLEO BRASILEIRO S.A.-PETROBRAS (Rio de Janeiro, Brazil) and UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE (Rio Grande Do Norte, Brazil).

"Microemulsion systems for extraction and displacement of oil in sandstone rocks" was invented by Carolina Rayanne Barbosa De Araujo (Parnamirim, Brazil), Dennys Correia Da Silva (Natal, Brazil), Guilherme Mentges Arruda (Natal, Brazil), Marcos Allyson Felipe Rodrigues (Natal, Brazil), Alcides De Oliveira Wanderley Neto (Parnamirim, Brazil), Daniel Alberton Haas (Rio de Janeiro, Brazil) and Leonardo Alencar De Oliveira (Rio de Janeiro, Brazil).

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