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Class Information
Number: 96/103
Name: Gas separation: apparatus > Chromatography type apparatus > With programmed, cyclic, or time responsive control means
Description: Apparatus which is provided with control means not directly responsive to a sensed condition for (a) storing coded instructions or other data necessary to regulate operation of the apparatus, (b) repetitively regulating a sequence of operational steps performed in or by the apparatus, or (c) causing various operations to occur according to preset timing sequences or to last for predetermined durations (e.g., timer switches, etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7604004 |
Personal oxygen concentrator |
Oct. 20, 2009 |
| 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 |
| 7507586 |
Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography with multiple modulation periods |
Mar. 24, 2009 |
| 7135056 |
Method and system for sub-ambient pressure control for column head pressure in gas chromatography systems |
Nov. 14, 2006 |
| 7121276 |
Personal oxygen concentrator |
Oct. 17, 2006 |
| 7091044 |
Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography |
Aug. 15, 2006 |
| 6838288 |
Modulator for gas chromatography |
Jan. 4, 2005 |
| 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 |
| 6649129 |
Method and apparatus for concentrating a VOC sample |
Nov. 18, 2003 |
| 6402947 |
Interphase device for the direct coupling of liquid chromatography and gas chromatography |
Jun. 11, 2002 |
| 6312575 |
Methods and devices for chromatographic pattern analysis employing chromatographic variability characterizations |
Nov. 6, 2001 |
| 6311544 |
Selective removal of volatile substances injected into a chromatographic packing filled column |
Nov. 6, 2001 |
| 6210465 |
Method for identification of components within a known sample |
Apr. 3, 2001 |
| 6190613 |
Sample concentration device |
Feb. 20, 2001 |
| 6131440 |
Selective removal of volatile substances injected into a chromatographic packing filled column |
Oct. 17, 2000 |
| 6106782 |
Chromatograph |
Aug. 22, 2000 |
| 6074461 |
Chromatograph having a gas recycling system |
Jun. 13, 2000 |
| 5944877 |
Precolumn separator for gas chromatograph |
Aug. 31, 1999 |
| 5929321 |
Selective removal of volatile substances injected into a chromatographic packing filled column |
Jul. 27, 1999 |
| 5782964 |
Gas chromatography column assembly temperature control system |
Jul. 21, 1998 |
| 5711786 |
Gas chromatographic system with controlled sample transfer |
Jan. 27, 1998 |
| 5670379 |
Chromatograph system and method of use |
Sep. 23, 1997 |
| 5588988 |
Thermal desorption device for a gas chromatograph |
Dec. 31, 1996 |
| 5567227 |
Method for improving the range of stable control of the pneumatic system of a gas chromatograph |
Oct. 22, 1996 |
| 5545252 |
Flow regulation in gas chromatograph |
Aug. 13, 1996 |
| 5508204 |
Multiple sample sequential chemical analysis |
Apr. 16, 1996 |
| 5436166 |
Method of and apparatus for performing chromatography analysis of unknown sample |
Jul. 25, 1995 |
| 5431712 |
Reconfigurable pneumatic control for split/splitless injection |
Jul. 11, 1995 |
| 5395521 |
Automated column equilibration, column loading, column washing and column elution |
Mar. 7, 1995 |
| 5322626 |
Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids |
Jun. 21, 1994 |
| 5240603 |
Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids |
Aug. 31, 1993 |
| 4944781 |
Gas chromatograph/autosampler coupling assembly |
Jul. 31, 1990 |
| 4711764 |
Automatic sample injector and disposable sample cassette |
Dec. 8, 1987 |
| 4711765 |
Sorption/desorption gas analysis apparatus |
Dec. 8, 1987 |
| 4704141 |
Apparatus for automatically transferring small quantities of liquid samples in gas chromatography |
Nov. 3, 1987 |
| 4684465 |
Supercritical fluid chromatograph with pneumatically controlled pump |
Aug. 4, 1987 |
| 4681678 |
Sample dilution system for supercritical fluid chromatography |
Jul. 21, 1987 |
| 4553985 |
Gas chromatography |
Nov. 19, 1985 |
| 4470832 |
Gas chromatographic apparatus |
Sep. 11, 1984 |
| 4302222 |
Methods and apparatus for continuous preparative chromatographic separation of fluid mixtures |
Nov. 24, 1981 |
| 4050911 |
Gas chromatograph oven |
Sep. 27, 1977 |
| 4038053 |
Method and apparatus for introducing liquid samples into a gas chromatographic column |
Jul. 26, 1977 |
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