ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,006, issued on Feb. 24, was assigned to SENSILL INC. (Concord, Calif.).

"Devices, methods, and systems to collect, concentrate, store, and analyze chemical substances" was invented by Richard Hatch (Pleasanton, Calif.), Mitchell Levinson (Pleasanton, Calif.), Ardeshir Bayat (Malibu, Calif.) and William Shea (Martinez, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Concentrating devices, systems, and methods include those for separating fluids to be sensed (e.g., analytes, such as volatile organic compounds (VOCs) and/or other chemical substances) from other fluid (e.g., a carrier gas, air, etc.) of a fluid mixture received from a target area ...