ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,014, issued on Oct. 7, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.).

"Propylene oligomerization processes with enhanced olefinic yields" was invented by Oleg A. Mironov (Kensington, Calif.) and Sven Ivar Hommeltoft (Pleasant Hill, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment the application pertains to a process which provides longer chain and less isomerized (more linear molecules). A propylene-derived olefin mixture is reacted under suitable conditions to form a mixture of oligomers in the presence of a catalyst comprising alkyl aluminum halide complex. A suitable alkyl aluminum halide complex comprises ethyl a...