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Class Information
Number: 250/292
Name: Radiant energy > Ionic separation or analysis > Cyclically varying ion selecting field means > Laterally resonant ion path
Description: Subject matter wherein the selecting means comprises field means causing alternating deflection of the ions normal to their general forward motion.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8013297 Ion gate for dual ion mobility spectrometer and method thereof Sep. 6, 2011
7999223 Multiple ion isolation in multi-reflection systems Aug. 16, 2011
7999224 Ion mobility spectrometers Aug. 16, 2011
7994473 Mass spectrometer with an electrostatic ion trap Aug. 9, 2011
7994475 Ion mobility spectrometer comprising two drift chambers Aug. 9, 2011
7989758 Fragmentation of ions in Kingdon ion traps Aug. 2, 2011
7989764 Ion trap mass spectrometry method Aug. 2, 2011
7989765 Method and apparatus for trapping ions Aug. 2, 2011
7985950 Parallel mass analysis Jul. 26, 2011
7982182 Mass spectrometer and mass spectrometry method Jul. 19, 2011
7973277 Driving a mass spectrometer ion trap or mass filter Jul. 5, 2011
7964842 Evaluation of frequency mass spectra Jun. 21, 2011
7960693 Microengineered electrode assembly Jun. 14, 2011
7960694 Mass spectrometer Jun. 14, 2011
7956322 Mass spectrometer and mass spectrometric analysis method Jun. 7, 2011
7952070 Interlaced Y multipole May. 31, 2011
7943899 Method and apparatus for identifying the apex of a chromatographic peak May. 17, 2011
7935924 Batch fabricated rectangular rod, planar MEMS quadrupole with ion optics May. 3, 2011
7935922 Ion guide chamber May. 3, 2011
7935923 Performance enhancement through use of higher stability regions and signal processing in non-ideal quadrupole mass filters May. 3, 2011
7932488 Concentrating mass spectrometer ion guide, spectrometer and method Apr. 26, 2011
7928373 Isolating ions in quadrupole ion traps for mass spectrometry Apr. 19, 2011
7928374 Resolution improvement in the coupling of planar differential mobility analyzers with mass spectrometers or other analyzers and detectors Apr. 19, 2011
7928375 Microfabricated linear Paul-Straubel ion trap Apr. 19, 2011
7923681 Collision cell for mass spectrometer Apr. 12, 2011
7919747 Mass spectrometer Apr. 5, 2011
7915580 Electro-dynamic or electro-static lens coupled to a stacked ring ion guide Mar. 29, 2011
7893402 Measurement of the mobility of mass-selected ions Feb. 22, 2011
7893407 High performance micro-fabricated electrostatic quadrupole lens Feb. 22, 2011
7888630 Reduced size high frequency quadrupole accelerator for producing a neutralized ion beam of high energy Feb. 15, 2011
7888633 Evaluation of spectra in oscillation mass spectrometers Feb. 15, 2011
7888634 Method of operating a linear ion trap to provide low pressure short time high amplitude excitation Feb. 15, 2011
7880140 Multipole mass filter having improved mass resolution Feb. 1, 2011
7875848 Ion trap, mass spectrometer, and ion mobility analyzer Jan. 25, 2011
7872229 Three-dimensional RF ion traps with high ion capture efficiency Jan. 18, 2011
7872228 Stacked well ion trap Jan. 18, 2011
7868289 Mass spectrometer ion guide providing axial field, and method Jan. 11, 2011
7863558 Radio frequency ion guide Jan. 4, 2011
7863562 Method and apparatus for digital differential ion mobility separation Jan. 4, 2011
7858930 Ion-trapping devices providing shaped radial electric field Dec. 28, 2010
7855355 High-voltage power unit and mass spectrometer using the power unit Dec. 21, 2010
7855360 Method and apparatus to accurately discriminate gas phase ions with several filtering devices in tandem Dec. 21, 2010
7855361 Detection of positive and negative ions Dec. 21, 2010
7851752 Ion guide for mass spectrometers Dec. 14, 2010
7851744 Mass spectrometer Dec. 14, 2010
7851747 Electrode structure for drift tube in ion mobility spectrometer Dec. 14, 2010
7847246 Collision-induced decomposition of ions in RF ion traps Dec. 7, 2010
7847248 Method and apparatus for reducing space charge in an ion trap Dec. 7, 2010
7842919 Q-pole type mass spectrometer Nov. 30, 2010
7842917 Method and apparatus for transmission mode ion/ion dissociation Nov. 30, 2010

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