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Class Information
Number: 95/87
Name: Gas separation: processes > Chromatography > With heating or cooling
Description: Process in which the plurality of gases, a liquid, a separated constituent, or an apparatus involved in the process is heated or cooled (e.g., the column may be heated in order to degas the solid sorbent or a gas may be heated or cooled, etc.).


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7572319 Analyte pre-concentrator for gas chromatography Aug. 11, 2009
7559226 Radiant thermal energy absorbing analytical column Jul. 14, 2009
7552617 Automated system for detection of chemical compounds Jun. 30, 2009
7534286 Methods and systems for cooling a chromatographic column May. 19, 2009
7524363 Gas chromatograph column assembly Apr. 28, 2009
7520920 Guard columns for gas chromatographs and gas chromatograph-mass spectrometers Apr. 21, 2009
7513936 Flat spiral capillary column assembly with thermal modulator Apr. 7, 2009
7485175 Device for positioning and holding a length of gas chromatographic column Feb. 3, 2009
7468095 System for controlling flow into chromatographic column using transfer line impedance Dec. 23, 2008
7409850 Systems and methods for maximizing heat transfer efficiency to and minimizing thermal gradients in an analytic column Aug. 12, 2008
7361208 Chromatography oven with heat exchange and method of use Apr. 22, 2008
7311757 Analyte pre-concentrator for gas chromatography Dec. 25, 2007
7306656 Gas chromatography apparatus Dec. 11, 2007
7303610 Chromatography column assembly Dec. 4, 2007
7291203 Negative temperature profiling using microwave GC apparatus Nov. 6, 2007
7273517 Non-planar microfabricated gas chromatography column Sep. 25, 2007
7267709 Methods and systems for characterizing a sorbent tube Sep. 11, 2007
7260978 Gas chromatography/mass spectrometry system Aug. 28, 2007
7258726 Method and apparatus for measuring velocity of chromatographic pulse Aug. 21, 2007
7147695 Microfabricated microconcentrator for sensors and gas chromatography Dec. 12, 2006
6955709 Method and device for vaporization injection of high volumes in gas chromatographic analysis Oct. 18, 2005
6929678 Purge and trap concentrator with improved drying Aug. 16, 2005
6907768 Device for coupling a microchromatograph with a mass spectrometer and analysis device Jun. 21, 2005
6907796 Temperature-controlled injector for a chemical analysis unit Jun. 21, 2005
6838288 Modulator for gas chromatography Jan. 4, 2005
6834531 Gas chromatograph modular auxiliary oven assembly and method for analyzing a refinery gas Dec. 28, 2004
6779379 Method and device for vaporization injection Aug. 24, 2004
6719826 Method and apparatus for sample injecting in gas chromatography Apr. 13, 2004
6706091 Sub-to super-ambient temperature programmable microfabricated gas chromatography column Mar. 16, 2004
6666907 Temperature programmable microfabricated gas chromatography column Dec. 23, 2003
6656738 Internal heater for preconcentrator Dec. 2, 2003
6638346 Vaporization injector Oct. 28, 2003
6607580 Separation column for a gas chromatograph Aug. 19, 2003
6607581 Passive sampling badge Aug. 19, 2003
6601439 Method of reducing baseline instabilities in liquid chromatographic measurements and liquid chromatography apparatus Aug. 5, 2003
6579345 Chromatography apparatus with direct heating of the capillary column Jun. 17, 2003
6550961 Thermal conductivity detector Apr. 22, 2003
6547852 Transverse thermal modulation Apr. 15, 2003
6514316 System for improving the maximum operating temperature and lifetime of chromatographic columns Feb. 4, 2003
6485543 Gas chromatography oven heaters Nov. 26, 2002
6460401 Method and apparatus for trace analysis of organic compound Oct. 8, 2002
6451614 Method and device for the vaporization injection Sep. 17, 2002
6447575 Method and apparatus for gas chromatography analysis of samples Sep. 10, 2002
6427522 Fast temperature programmed gas chromatograph Aug. 6, 2002
6423120 Sample introduction systems and methods Jul. 23, 2002
6368559 Device for analyzing organic compounds particularly in aqueous and gaseous samples Apr. 9, 2002
6354136 Gas chromatograph with a temperature-controlled injector Mar. 12, 2002
6345528 High-temperature characterization of polymers with HPLC system having multiple mobile-phase reservoirs Feb. 12, 2002
6341520 Method and apparatus for analyzing breath sample Jan. 29, 2002
6316759 Microwave heating apparatus for gas chromatographic columns Nov. 13, 2001

1 2 3


 
 
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