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Class Information
Number: 95/82
Name: Gas separation: processes > Chromatography
Description: Process in which (a) the plurality of gases to be separated enters a column to contact a liquid, known as the "stationary liquid phase," supported by a base of solid material to successively sorb therein the different gases of the mixture or (b) the plurality of gases to be separated enters a column to contact a solid sorbent to successively sorb thereon the different gases of the mixture with or without subsequently successively eluting or displacing the sorbed gases in (a) or (b) with a gas which is inert with respect to the sorbed gases and sorbent; and subcombinations of the processes in (a) and (b) that do not result in separation when the subcombinations are not provided for elsewhere.

Sub-classes under this class:

Class Number Class Name Patents
95/85 Including use of gas flow distributor in column 6
95/89 Injection, per se, without separation 71
95/84 Liquid supported on particulate packing 15
95/83 Liquid supported on surface of capillary column 17
95/86 Plural separate columns 61
95/88 Specific column packing or sorbent material (e.g., particle size, composition, etc.) 86
95/87 With heating or cooling 158

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8591630 Fast gas chromatograph method and device for analyzing a sample Nov. 26, 2013
8562837 Backflush methods and devices for chromatography Oct. 22, 2013
8506801 Device for capillary chromatography and method for manufacturing such a device Aug. 13, 2013
8475568 Process for the enrichment of isotopes Jul. 2, 2013
8414684 High pressure degas assembly for chromatography system and method Apr. 9, 2013
8389289 Gas chromatography apparatus Mar. 5, 2013
8322189 Comprehensive two-dimensional gas chromatography method with one switching valve as the modulator Dec. 4, 2012
8308854 Helium reclamation systems and methods for a gas chromatograph Nov. 13, 2012
8230719 Method for identifying the composition of a sample Jul. 31, 2012
8156788 Supercritical-phase mixed chromatography method and installation for implementing same Apr. 17, 2012
8134121 Chromatographic mass spectrometer Mar. 13, 2012
8123834 High gain selective metal organic framework preconcentrators Feb. 28, 2012
8099995 Choked flow isolator for noise reduction in analytical systems Jan. 24, 2012
8088627 On-line gas chromatographic analysis of airborne particles Jan. 3, 2012
8062516 Low thermal mass, adjustable locking GC nut Nov. 22, 2011
8011224 Method and device for detecting and identifying chemical agents Sep. 6, 2011
7954360 Field mounted analyzer with a graphical user interface Jun. 7, 2011
7947112 Method for degassing a fluid May. 24, 2011
7928370 Open probe method and device for sample introduction for mass spectrometry analysis Apr. 19, 2011
7914612 Compliant column sheath assembly for gas chromatography Mar. 29, 2011
7897917 Methods and apparatus for performing chromatography and mass spectroscopy with supercritical fluid samples Mar. 1, 2011
7832253 Portable weather resistant gas chromatograph system Nov. 16, 2010
7824471 Chromatographic systems and methods for eliminating interference from interfering agents Nov. 2, 2010
7823439 Method for identifying the composition of a sample Nov. 2, 2010
7824478 Methods and systems for characterizing a sorbent tube Nov. 2, 2010
7806963 Apparatus, system, and method for improved power utilization in a gas chromatography sensor Oct. 5, 2010
7791042 Method and apparatus for selectively performing chemical ionization or electron ionization Sep. 7, 2010
7699915 Liquid impingement unit Apr. 20, 2010
7691181 System for controlling flow into chromatographic column using transfer line impedance Apr. 6, 2010
7572319 Analyte pre-concentrator for gas chromatography Aug. 11, 2009
7559227 Pneumatic testing for gas chromatograph inlet Jul. 14, 2009
7552618 Chromatographic interface for thermal desorption systems Jun. 30, 2009
7544233 Gas chromatograph with a mass spectrometer situated down therefrom, and method for performing the gas chromatographic/mass spectrometric analysis of a substance mixture Jun. 9, 2009
7506533 Gas chromatograph module with an electronic device Mar. 24, 2009
7476852 Ionization-based detection Jan. 13, 2009
7468095 System for controlling flow into chromatographic column using transfer line impedance Dec. 23, 2008
7422625 Methods and systems for characterizing a sorbent tube Sep. 9, 2008
7409850 Systems and methods for maximizing heat transfer efficiency to and minimizing thermal gradients in an analytic column Aug. 12, 2008
7403858 Method for detecting an occurrence zone of a mantle diapir finger location Jul. 22, 2008
7396386 Method and apparatus for keeping constant the retention times in a gaschromatographic analysis Jul. 8, 2008
7384453 Self-contained chromatography system Jun. 10, 2008
7384457 Seal for gas chromatography Jun. 10, 2008
7383718 Single stage flow modulator for performing comprehensive chromatography Jun. 10, 2008
7368000 Treatment of effluent gases May. 6, 2008
7361206 Apparatus and method for water vapor removal in an ion mobility spectrometer Apr. 22, 2008
7360394 Multi-purpose modular pyrolysis and thermal processing system for chemical and biological threat agent detection Apr. 22, 2008
7343779 High performance, hand-held gas chromatograph, method and system Mar. 18, 2008
7316730 Inlet double-seal assembly Jan. 8, 2008
7314505 Stationary phase deposition based on onium salts Jan. 1, 2008
7311757 Analyte pre-concentrator for gas chromatography Dec. 25, 2007

1 2 3 4

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