US Patent Issued to The Regents of The University of Michigan on Dec. 23 for "Microscale collector-injector technologies for passive environmental vapor sampling and focused injection" (Michigan Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,409, issued on Dec. 23, was assigned to The Regents of The University of Michigan (Ann Arbor, Mich.).

"Microscale collector-injector technologies for passive environmental vapor sampling and focused injection" was invented by Edward T. Zellers (Ann Arbor, Mich.), Changhua Zhan (Ann Arbor, Mich.), Robert W. Hower (Ann Arbor, Mich.) and Joseph A. Potkay (Plymouth, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microscale collector and injector device comprises a microscale passive pre-concentrator (MuPP) and a microscale progressively-heated injector (MuPHI). The MuPP devices comprises first and second substrate portions, a first collection ma...