ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,406, issued on Sept. 29, was assigned to Infineum International Ltd. (Linden, N.J.).
"Fused-ring polycyclic amine functionalized olefinic polymers for lubricating oil compositions" was invented by Evan Haidasz (Hoboken, N.J.), John Keily (Oxford, Great Britain) and Mark P. Driver (Didcot, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure relates to functionalized olefinic polymers comprising an olefinic polymer bound to at least one fused-ring polycyclic amine for each polymer molecule, wherein the fused-ring polycyclic amine comprises at least one secondary amine and at least one other heteroatom therein and further comp...