ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,879, issued on March 4, was assigned to Consumer Safety Technology LLC (Des Moines, Iowa).
"Reference gas management in a breath alcohol calibration station" was invented by Douglas Edward DeVries (Johnston, Iowa) and Scott Ruland (Kansas City, Mo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A breath alcohol device calibration system includes a computerized calibration module operable to calibrate a candidate breath alcohol device using a reference gas of known alcohol concentration, and a reference gas tank identification module operable to identify a reference gas tank that is coupled to the breath alcohol device calibration system. Identificat...