ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,706,291, issued on Aug. 11, was assigned to Thermo Fisher Scientific (Bremen) GmbH (Bremen, Germany).
"Quadrupole ion optical device" was invented by Ulf Froehlich (Bremen, Germany), Dennis Hohenaecker (Bremen, Germany) and Johannes Schwieters (Bremen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Quadrupole ion optical devices configured to arrange paths of each of a plurality of ion beams exiting from a mass analyser towards detector elements of a mass spectrometer. Example quadrupole ion optical device comprise a plurality of electrodes arranged around a central axis and configured to generate a quadrupole potential through which the path of...