| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bcff13f8573db698307f919e6385d5c4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-623
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-324 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F16-958
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-461
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-32 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-62 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F17-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-46 |
| filingDate |
2002-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2004-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5daf02b09dd20c9f6411e032f27c20d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90a9f76d82f3f91b8a80b1bad75bf3e0 |
| publicationDate |
2004-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6702989-B2 |
| titleOfInvention |
Pulsed carrier gas flow modulation for selectivity enhancements with gas chromatography using series-coupled column ensembles |
| abstract |
A gas chromatography system having a computer-controlled venting valve system that delivers pressurized pulses to a column junction point of two series-coupled columns having different stationary-phase chemistries and a method of using the same. Each pressurized pulse causes a differential change in the carrier gas velocities in the two columns, which lasts for the duration of the pressurized pulse. Whereby, the pressurized pulse selectively increases the separation of a component pair that exhibits separation at the exit of the first column, but otherwise co-elutes from the column ensemble. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9190022-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004191803-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8994556-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009150087-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006115904-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7112111-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7623946-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7507586-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8968560-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007071650-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7527676-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013229449-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005048662-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7091044-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007084345-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005277200-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7601543-B2 |
| priorityDate |
2001-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |