US Patent Issued to SAUDI ARABIAN OIL on March 18 for "Reduced internal combustion engine particulate matter emissions" (French Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,014, issued on March 18, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Reduced internal combustion engine particulate matter emissions" was invented by Emmanuel Laigle (Courbevoie, France), Christophe Chaillou (Rueil-Malmaison, France) and Caroline Norsic (Rueil-Malmaison, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for reducing internal combustion engine emissions includes a main exhaust line, a multi-particulate filter, and a valve connected between the main exhaust line and the multi-particulate filter. The multi-particulate filter contains a first particulate filter, a second particulate filter, a first ...