US Patent Issued to The Regents of The University of Michigan on Sept. 23 for "Chromatographic column having stationary phase thickness gradient" (Michigan, Tennessee Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,262, issued on Sept. 23, was assigned to The Regents of The University of Michigan (Ann Arbor, Mich.).

"Chromatographic column having stationary phase thickness gradient" was invented by Xudong Fan (Saline, Mich.), Hongbo Zhu (Johnson City, Tenn.), Jinyan She (Ann Arbor, Mich.), Maxwell Wei-Hao Li (Troy, Mich.) and Katsuo Kurabayashi (Ann Arbor, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas chromatography device for peak focusing of one or more target analytes is provided that include a chromatographic column with an inlet and an outlet. A stationary phase is deposited inside the chromatographic column and has a positive thickness grad...