ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,915, issued on June 2, was assigned to Dow Global Technologies LLC (Midland, Mich.).

"Olefin polymerization catalysts bearing a 6-amino-N-aryl azaindole ligand" was invented by Sanil Sreekumar (Newton, Conn.), Brad C. Bailey (Midland, Mich.), Arvind Jaganathan (Indianapolis), James J. Henkelis (Indianapolis), Matthew D. Christianson (Midland, Mich.), Sukrit Mukhopadhyay (Midland, Mich.), James A. Walker (Midland, Mich.) and Jordan C. Reddel (Midland, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments are directed to a metal-ligand complex of formula (I). In addition, a polymerization process includes polymerizing at least one olefin in ...