US Patent Issued to Dow Global Technologies on March 18 for "Heterocycle-heterocycle-based group IV transition metal catalysts for olefin polymerization" (Texas, Michigan Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,573, issued on March 18, was assigned to Dow Global Technologies LLC (Midland, Mich.).

"Heterocycle-heterocycle-based group IV transition metal catalysts for olefin polymerization" was invented by David Koenigs (Richwood, Texas), David D. Devore (Midland, Mich.), Brad C. Bailey (Midland, Mich.), Endre Szuromi (Richwood, Texas), Robert D. Grigg (Midland, Mich.), David M. Pearson (Lake Jackson, Texas), Nolan T. McDougal (Houston), John B. Etienne (Mt. Pleasant, Mich.) and Sukrit Mukhopadhyay (Midland, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The polymerization process of this disclosure includes includes polymerizing ethylene and one or m...