ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,552, issued on July 22, was assigned to Mecanique Analytique Inc. (Thetford Mines, Canada).
"Photoionization detector and method for gas sample analysis" was invented by Yves Gamache (Thetford Mines, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A photoionization detector (PID) is disclosed that includes an ionization chamber configured to allow a flow of a gas sample therethrough, the ionization chamber defining an ionization region and a detection region, a photoionization source configured to generate ionizing radiation for irradiating the flow of the gas sample in the ionization region, an electric-field ionization source configured to a...