ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,768, issued on July 8, was assigned to Alliance for Sustainable Energy LLC (Golden, Colo.).

"Renewable co-solvents for thermochemical bio-oil processing" was invented by Derek Richard Vardon (Lakewood, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Treating pyrolysis oil to yield a liquid fuel or liquid fuel precursor includes combining the pyrolysis oil with one or more co-solvents to yield a mixture, and hydrotreating the mixture to yield the liquid fuel or liquid fuel precursor. The co-solvent can include one or more alcohols. The liquid fuel can be a transportation fuel, such as gasoline, diesel fuel, jet fuel, or marine fuel. The liquid fu...