ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,622, issued on July 21, was assigned to Toyota Research Institute Inc. (Los Altos, Calif.).

"Calcium ruthenate composition of matter and calcium ruthenate catalysts" was invented by Joseph Harold Montoya (Berkeley, Calif.) and Muratahan Aykol (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A calcium ruthenate composition of matter includes a compound of calcium, ruthenium and oxygen with a chemical formula of CaaRubOc and with 'a' greater than or equal to 2.75 and less than or equal to 3.25, 'b' greater than or equal to 0.75 and less than or equal to 1.25, and 'c' greater than or equal to 5.75 and less than or equal to 6.25. The Caa...