ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,072, issued on Aug. 4, was assigned to DH Technologies Development Pte. Ltd. (Singapore).
"Dynamic heating of a differential mobility spectrometer cell" was invented by John L. Campbell (Milton, Canada), Bradley B. Schneider (Concord, Canada) and Thomas R. Covey (Newmarket, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a differential mobility spectrometer (DMS) includes providing a heater disposed proximate a ceramic body of a DMS cell. A first control voltage is applied to the heater. A first threshold is detected by a first sensor disposed within a curtain plate that substantially surrounds the DMS cell. A second contr...