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Class Information
Number: 250/289
Name: Radiant energy > Ionic separation or analysis > With evacuation or sealing means
Description: Subject matter having means producing a subatmospheric pressure environment for the selecting means or means to maintain the pressure of the environment of the selecting means sub atmospheric.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459704 |
Ion source configuration for production of ionized clusters, ionized molecules and ionized mono-atoms |
Dec. 2, 2008 |
| 7427750 |
Mass spectrometer assemblies, mass spectrometry vacuum chamber lid assemblies, and mass spectrometer operational methods |
Sep. 23, 2008 |
| 7391019 |
Electrospray ion source |
Jun. 24, 2008 |
| 7388196 |
Hyperbolic horn helical mass spectrometer |
Jun. 17, 2008 |
| 7378651 |
High field asymmetric waveform ion mobility spectrometer FAIMS |
May. 27, 2008 |
| 7361891 |
Pressure-flow reducer for aerosol focusing devices |
Apr. 22, 2008 |
| 7339167 |
Charged particle beam apparatus |
Mar. 4, 2008 |
| 7335877 |
Inline automated chemical analysis signal optimization |
Feb. 26, 2008 |
| 7331216 |
Leak rate measuring device |
Feb. 19, 2008 |
| 7148475 |
Device for automated coupling between a micro-chromatograph and a mass spectrometer comprising a temperature adjustment |
Dec. 12, 2006 |
| 7145137 |
Demountable direct injection high efficiency nebulizer for inductively coupled plasma mass spectrometry |
Dec. 5, 2006 |
| RE39353 |
Mass spectrometer system and method for matrix-assisted laser desorption measurements |
Oct. 17, 2006 |
| 7119329 |
Method of preparing and reconditioning an electrode of mass spectrometer |
Oct. 10, 2006 |
| 7119330 |
Plasma mass spectrometer |
Oct. 10, 2006 |
| 7095016 |
Direct liquid injection inlet to a laser photoionization apparatus |
Aug. 22, 2006 |
| 7064321 |
Ion funnel with improved ion screening |
Jun. 20, 2006 |
| 7034292 |
Mass spectrometry with segmented RF multiple ion guides in various pressure regions |
Apr. 25, 2006 |
| 7005634 |
Ionization apparatus |
Feb. 28, 2006 |
| 7002147 |
Highly sensitive vacuum ion pump current measurement system |
Feb. 21, 2006 |
| 6989532 |
Mass spectrometer |
Jan. 24, 2006 |
| 6949742 |
Method and a system for producing electrospray ions |
Sep. 27, 2005 |
| 6936817 |
Optical column for charged particle beam device |
Aug. 30, 2005 |
| 6894383 |
Reduced substrate micro-electro-mechanical systems (MEMS) device and system for producing the same |
May. 17, 2005 |
| 6872956 |
Particle beam device with a particle source to be operated in high vacuum and cascade-type pump arrangement for such a particle beam device |
Mar. 29, 2005 |
| 6844546 |
Explosive detection system |
Jan. 18, 2005 |
| 6844556 |
Ion source, method of operating the same, and ion source system |
Jan. 18, 2005 |
| 6835929 |
Coaxial atmospheric pressure photoionization source for mass spectrometers |
Dec. 28, 2004 |
| 6825466 |
Apparatus and method for automated sample analysis by atmospheric pressure matrix assisted laser desorption ionization mass spectrometry |
Nov. 30, 2004 |
| 6822224 |
Tandem high field asymmetric waveform ion mobility spectrometry (FAIMS)tandem mass spectrometry |
Nov. 23, 2004 |
| 6812453 |
Mass spectrometer |
Nov. 2, 2004 |
| 6809322 |
Environmental scanning electron microscope |
Oct. 26, 2004 |
| 6809312 |
Ionization source chamber and ion beam delivery system for mass spectrometry |
Oct. 26, 2004 |
| 6806464 |
Method and device for detecting and identifying bio-aerosol particles in the air |
Oct. 19, 2004 |
| 6791079 |
Mass spectrometer based on the use of quadrupole lenses with angular gradient of the electrostatic field |
Sep. 14, 2004 |
| 6642516 |
Apparatus and method of laser dissociation for mass spectrometry |
Nov. 4, 2003 |
| 6608304 |
Automatic background ejection (ABE) |
Aug. 19, 2003 |
| 6586730 |
Plasma ion source mass spectrometer |
Jul. 1, 2003 |
| 6573110 |
Combinatorial chemistry system and method of use |
Jun. 3, 2003 |
| 6548263 |
Miniaturized cell array methods and apparatus for cell-based screening |
Apr. 15, 2003 |
| 6521887 |
Time-of-flight ion mass spectrograph |
Feb. 18, 2003 |
| 6498344 |
Triode ion pump |
Dec. 24, 2002 |
| 6423965 |
Mass spectrometer |
Jul. 23, 2002 |
| 6396064 |
Differential pumping via core of annular supersonic jet |
May. 28, 2002 |
| RE37485 |
Mass spectrometer system and method for matrix-assisted laser desorption measurements |
Dec. 25, 2001 |
| 6320388 |
Multiple channel photo-ionization detector for simultaneous and selective measurement of volatile organic compound |
Nov. 20, 2001 |
| 6265717 |
Inductively coupled plasma mass spectrometer and method |
Jul. 24, 2001 |
| 6114694 |
Device having field emission type cold cathode and vacuum tank exhausting method and system in the same |
Sep. 5, 2000 |
| 6087657 |
Mass spectrometry and mass spectrometer |
Jul. 11, 2000 |
| 6069355 |
Ion trap mass pectrometer with electrospray ionization |
May. 30, 2000 |
| 6068749 |
Subatmospheric, variable pressure sample delivery chamber for electrospray ionization/mass spectrometry and other applications |
May. 30, 2000 |
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