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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
6956205 Means and method for guiding ions in a mass spectrometer Oct. 18, 2005
6953929 Mass analyzing method using an ion trap type mass spectrometer Oct. 11, 2005
6949737 Device for collecting ions in a mass spectrometer Sep. 27, 2005
6949743 High-Q pulsed fragmentation in ion traps Sep. 27, 2005
6940068 Quadrupole mass filter Sep. 6, 2005
6936815 Integrated shield in multipole rod assemblies for mass spectrometers Aug. 30, 2005
6933498 Ion trap array-based systems and methods for chemical analysis Aug. 23, 2005
6926783 Manufacturing precision multipole guides and filters Aug. 9, 2005
6924478 Tandem mass spectrometry method Aug. 2, 2005
6914396 Multi-stage cavity cyclotron resonance accelerator Jul. 5, 2005
6911650 Method and apparatus for multiple frequency multipole Jun. 28, 2005
6911651 Ion trap Jun. 28, 2005
6909089 Methods and apparatus for reducing artifacts in mass spectrometers Jun. 21, 2005
6906321 Time-of-flight mass spectrometer Jun. 14, 2005
6906324 Apparatus and method for analyzing samples in a dual ion trap mass spectrometer Jun. 14, 2005
6900433 Method and apparatus for ejecting ions from a quadrupole ion trap May. 31, 2005
6900430 Mass spectrometer and measurement system using the mass spectrometer May. 31, 2005
6897438 Geometry for generating a two-dimensional substantially quadrupole field May. 24, 2005
6894286 Ion focussing and conveying device and a method of focussing the conveying ions May. 17, 2005
6894276 Probing method using ion trap mass spectrometer and probing device May. 17, 2005
6891157 Mass spectrometer May. 10, 2005
6888134 Mass spectrometer and mass spectrometric method May. 3, 2005
6888133 Integrated ion focusing and gating optics for ion trap mass spectrometer May. 3, 2005
6884995 Mass spectrometer Apr. 26, 2005
6884996 Space charge adjustment of activation frequency Apr. 26, 2005
6878933 Method for coupling laser desorption to ion trap mass spectrometers Apr. 12, 2005
6878929 Mass spectrometer and methods of mass spectrometry Apr. 12, 2005
6875980 Mass spectrometer Apr. 5, 2005
6872939 Mass spectrometer Mar. 29, 2005
6872938 Mass spectrometry method and apparatus Mar. 29, 2005
6872940 Focusing ions using gas dynamics Mar. 29, 2005
6870159 Ion trap device and its tuning method Mar. 22, 2005
6870158 Microfabricated cylindrical ion trap Mar. 22, 2005
6861644 Ion trap mass spectrometer Mar. 1, 2005
6852972 Mass spectrometer Feb. 8, 2005
6852942 Controlled fusion in a field reversed configuration and direct energy conversion Feb. 8, 2005
6852971 Electric charge adjusting method, device therefor, and mass spectrometer Feb. 8, 2005
6847037 Ion trap mass spectrometer Jan. 25, 2005
6844547 Circuit for applying supplementary voltages to RF multipole devices Jan. 18, 2005
6838666 Rectilinear ion trap and mass analyzer system and method Jan. 4, 2005
6838665 Ion trap type mass spectrometer Jan. 4, 2005
6835928 Mass spectrometer Dec. 28, 2004
6833545 Method and device for performing analyses in parallel Dec. 21, 2004
6831275 Nonlinear resonance ejection from linear ion traps Dec. 14, 2004
6828551 Mass spectrometer system Dec. 7, 2004
6828550 External shutter for electrospray ionization mass spectrometry Dec. 7, 2004
6825460 Ion mobility spectrometers Nov. 30, 2004
6822224 Tandem high field asymmetric waveform ion mobility spectrometry (FAIMS)tandem mass spectrometry Nov. 23, 2004
6818890 High performance ion mobility spectrometry using hourglass electrodynamic funnel and internal ion funnel Nov. 16, 2004
6815674 Mass spectrometer and related ionizer and methods Nov. 9, 2004

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