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Class Information
Number: 96/104
Name: Gas separation: apparatus > Chromatography type apparatus > Plural separate and distinct stages
Description: Apparatus which has two or more separate and distinct stages or zones for chromatos:graphic treatment of the plurality of gases where these stages may either be contained within the same column or housed in separate columns.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7601543 |
Method of modulating a second carrier for partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography |
Oct. 13, 2009 |
| 7575676 |
HPLC column holder apparatus |
Aug. 18, 2009 |
| 7572319 |
Analyte pre-concentrator for gas chromatography |
Aug. 11, 2009 |
| 7527676 |
Unit for separating gas |
May. 5, 2009 |
| 7524363 |
Gas chromatograph column assembly |
Apr. 28, 2009 |
| 7507273 |
Chromatographic rectification of ethanol |
Mar. 24, 2009 |
| 7507586 |
Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography with multiple modulation periods |
Mar. 24, 2009 |
| 7383718 |
Single stage flow modulator for performing comprehensive chromatography |
Jun. 10, 2008 |
| 7311757 |
Analyte pre-concentrator for gas chromatography |
Dec. 25, 2007 |
| 7260978 |
Gas chromatography/mass spectrometry system |
Aug. 28, 2007 |
| 7091044 |
Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography |
Aug. 15, 2006 |
| 6955709 |
Method and device for vaporization injection of high volumes in gas chromatographic analysis |
Oct. 18, 2005 |
| 6877363 |
Chromatography column |
Apr. 12, 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 |
| 6706535 |
Pulsed carrier gas flow modulation for selectivity enhancements with gas chromatography using series-coupled column ensembles |
Mar. 16, 2004 |
| 6706534 |
Pulsed carrier gas flow modulation for selectivity enhancements with gas chroma tography using series-coupled ensembles |
Mar. 16, 2004 |
| 6702989 |
Pulsed carrier gas flow modulation for selectivity enhancements with gas chromatography using series-coupled column ensembles |
Mar. 9, 2004 |
| 6702874 |
Gas separation apparatus and gas separation method |
Mar. 9, 2004 |
| 6682699 |
Reduced power consumption gas chromatograph system |
Jan. 27, 2004 |
| 6656738 |
Internal heater for preconcentrator |
Dec. 2, 2003 |
| 6632268 |
Method and apparatus for comprehensive two-dimensional gas chromatography |
Oct. 14, 2003 |
| 6551387 |
Gas separation apparatus |
Apr. 22, 2003 |
| 6541273 |
Multiple sorbent cartridges for solid phase extraction |
Apr. 1, 2003 |
| 6497138 |
Multilayered gas chromatograph |
Dec. 24, 2002 |
| 6447575 |
Method and apparatus for gas chromatography analysis of samples |
Sep. 10, 2002 |
| 6402947 |
Interphase device for the direct coupling of liquid chromatography and gas chromatography |
Jun. 11, 2002 |
| 6368559 |
Device for analyzing organic compounds particularly in aqueous and gaseous samples |
Apr. 9, 2002 |
| 6306200 |
Hand-held multiple system gas chromatograph |
Oct. 23, 2001 |
| 6217829 |
Reduced power consumption gas chromatograph system |
Apr. 17, 2001 |
| 6190613 |
Sample concentration device |
Feb. 20, 2001 |
| 6068684 |
Microstructure chromatograph with rectangular column |
May. 30, 2000 |
| 6033459 |
Gas collection apparatus, gas analyzing apparatus using the same and gas analyzing method |
Mar. 7, 2000 |
| 6007602 |
Apparatus and method for chemical modulation |
Dec. 28, 1999 |
| 6004514 |
Process gas chromatographic system |
Dec. 21, 1999 |
| 5872306 |
Real-time gas-chromatography mass-spectrometry trace vapor detection |
Feb. 16, 1999 |
| 5846292 |
Chromatograph with column extraction |
Dec. 8, 1998 |
| 5686655 |
Gas chromatograph/mass spectrometer system |
Nov. 11, 1997 |
| 5611846 |
Portable gas chromatograph |
Mar. 18, 1997 |
| 5582633 |
Water management device for gas chromatography sample concentration |
Dec. 10, 1996 |
| 5578111 |
Process and a device for continuous chromatography |
Nov. 26, 1996 |
| 5547497 |
Apparatus for gas chromatography |
Aug. 20, 1996 |
| 5522988 |
On-line coupled liquid and gas chromatography system with an interface capillary tube interposed between a pair of capillary chromatographic columns |
Jun. 4, 1996 |
| 5498279 |
High speed gas chromatography system for analysis of polar organic compounds |
Mar. 12, 1996 |
| 5492555 |
Automated two-dimensional interface for capillary gas chromatography |
Feb. 20, 1996 |
| 5470380 |
Management device for gas chromatography sample concentration |
Nov. 28, 1995 |
| 5403386 |
Concentrator apparatus for detecting trace organic components in aqueous samples |
Apr. 4, 1995 |
| 5402668 |
High-resolution beer volatile analysis method |
Apr. 4, 1995 |
| 5342515 |
Chromatographic column |
Aug. 30, 1994 |
| 5340475 |
On-line supercritical fluid extraction multidimensional chromatographic system |
Aug. 23, 1994 |
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