ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,312, issued on March 25, was assigned to Global Bioenergies (Evry, France).

"Carbonyl compounds, methods for preparing same and uses thereof" was invented by Serge Ratton (Saint Germain en Laye, France), Marc Lemaire (Villeurbanne, France), Luc Mathis (Le Kremlin Bicetre, France) and Estelle Metay (Villeurbanne, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to a compound of the following formula (I) in which -R1, R2, R3 and R4 represent independently of each other H or a (C1-C30) alkyl group, the total sum of the number of carbon atoms of R1, R2, R3 and R4 being equal to 6+4x, x being a whole number of betwee...