ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,194, issued on June 24, was assigned to Dow Global Technologies LLC (Midland, Mich.).
"Processes for efficient and sustained production of C2 to C4 olefins" was invented by Joseph F. Dewilde (Midland, Mich.), Adam Chojecki (Ghent, Belgium), Alexey Kirilin (Terneuzen, Netherlands), Ewa A. Tocha-Bielak (Terneuzen, Netherlands), David F. Yancey (Midland, Mich.), Glenn Pollefeyt (Wondelgem, Belgium), Davy L.S. Nieskens (Terneuzen, Netherlands) and Andrzej Malek (Midland, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process for preparing C2 to C4 olefins includes introducing a feed stream of hydrogen gas and a carbon-containing gas into a react...