ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,475, issued on March 17, was assigned to Lummus Technology LLC (Houston).

"Process for conversion of very light, sweet crude oil to chemicals" was invented by Ujjal Mukherjee (Houston), Pedro Santos (Houston) and Kandasamy Sundaram (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and processes for converting light or very light sweet crudes and condensates to chemicals and petrochemicals. The process includes providing a hydrocarbon feedstock comprising a crude oil or condensate having an API gravity of at least 35, a sulfur content of less than 0.2 wt %, and less than 10 wt % of hydrocarbons having a normal boiling point above 575de...