ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,315, issued on June 16, was assigned to GOTTFRIED WILHELM LEIBNIZ UNIVERSITAT HANNOVER (Hannover, Germany).
"Ion mobility spectrometer" was invented by Stefan Zimmermann (Burgwedel, Germany) and Ansgar Kirk (Hannover, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an ion mobility spectrometer (1) having an ionization chamber (13), with at least one ionization source (3) and at least one drift chamber (14) arranged downstream of the ionization chamber (13) in a desired drift direction (D) of the ions, wherein the ionization chamber (13) is connected to a feed duct (4) through which a sample gas to be analysed can be f...