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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:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
7615744 Microengineered nanospray electrode system Nov. 10, 2009
7612335 Method and apparatus for ion fragmentation by electron capture Nov. 3, 2009
7601952 Method of operating a mass spectrometer to provide resonant excitation ion transfer Oct. 13, 2009
7598489 Systems and methods for ion mobility control Oct. 6, 2009
7592589 Method of mass spectrometry and mass spectrometer Sep. 22, 2009
7589321 Reaction cell and mass spectrometer Sep. 15, 2009
7582866 Ion trap mass spectrometry Sep. 1, 2009
7582862 Ion source for electron transfer dissociation and deprotonation Sep. 1, 2009
7582865 Two-dimensional ion trap with ramped axial potentials Sep. 1, 2009
7582867 Mass spectrometers Sep. 1, 2009
7579589 Ultra compact ion mobility based analyzer apparatus, method, and system Aug. 25, 2009
7579585 Method and apparatus for scanning an ion trap mass spectrometer Aug. 25, 2009
7576324 Ion detection methods, mass spectrometry analysis methods, and mass spectrometry instrument circuitry Aug. 18, 2009
7573029 Ion trap with longitudinal permanent magnet and mass spectrometer using same Aug. 11, 2009
7569814 Mass spectrometer Aug. 4, 2009
7569813 Method for enhancing mass assignment accuracy Aug. 4, 2009
7569811 Concentrating mass spectrometer ion guide, spectrometer and method Aug. 4, 2009
7566870 Mass spectrometer Jul. 28, 2009
7564025 Multipole devices and methods Jul. 21, 2009
7560688 Mass analysis of mobility selected ion populations Jul. 14, 2009
7557344 Confining ions with fast-oscillating electric fields Jul. 7, 2009
7557343 Segmented rod multipole as ion processing cell Jul. 7, 2009
7550717 Quadrupole FAIMS apparatus Jun. 23, 2009
7550718 Process for increasing ionic charge in mass spectrometry Jun. 23, 2009
7544934 System and method for implementing balanced RF fields in an ion trap device Jun. 9, 2009
7541579 Linear quadrupoles with added hexapole fields and method of building and operating same Jun. 2, 2009
7534997 Mass spectrometer interface for atmospheric ionization ion sources May. 19, 2009
7534998 System and method for implementing balanced RF fields in an ion trap device May. 19, 2009
7528365 Chemical noise reduction for mass spectrometry May. 5, 2009
7528370 High-Q pulsed fragmentation in ion traps May. 5, 2009
7521674 Method for trapping uncharged multi-pole particles Apr. 21, 2009
7514674 Octapole ion trap mass spectrometers and related methods Apr. 7, 2009
7514677 Hybrid ion guide Apr. 7, 2009
7514676 Method and apparatus for selective filtering of ions Apr. 7, 2009
7507954 Pulsed ion source for quadrupole mass spectrometer method Mar. 24, 2009
7507955 Mass spectrometer multipole device Mar. 24, 2009
7504621 Method and system for mass analysis of samples Mar. 17, 2009
7501620 Laser irradiation mass spectrometer Mar. 10, 2009
7501622 Ion storage device Mar. 10, 2009
7501623 Two-dimensional electrode constructions for ion processing Mar. 10, 2009
7498571 RF power supply for a mass spectrometer Mar. 3, 2009
7498569 Ion trap mass analyzer Mar. 3, 2009
7495212 Ion guide for mass spectrometers Feb. 24, 2009
7495213 Method and apparatus for providing ion barriers at the entrance and exit ends of a mass spectrometer Feb. 24, 2009
7491932 Multipole ion guide having longitudinally rounded electrodes Feb. 17, 2009
7476853 Ion fragmentation by reaction with neutral particles Jan. 13, 2009
7470900 Compensating for field imperfections in linear ion processing apparatus Dec. 30, 2008
7459693 Ion guide for mass spectrometers Dec. 2, 2008
7459679 Method and apparatus for mass selective axial transport using pulsed axial field Dec. 2, 2008
7459678 Switchable branched ion guide Dec. 2, 2008

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