| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dc365d0d4cf537a503859144cd924ad6 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-02809
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0426
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0423
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-02845
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0256
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-014 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01H11-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-036 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N5-02 |
| filingDate |
1993-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e76ce0bbf83894d87edd251743a80098
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fad5eb8e36aee4fe57f524de93240875
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55a20bedecd2c85641f9e921f68362fb |
| publicationDate |
2000-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-100263724-B1 |
| titleOfInvention |
Devices for monitoring impurities in the gas stream |
| abstract |
The present invention provides a device consisting of a piezoelectric material and one or more coatings that react with small amounts of oxygen and / or water present in reactive and inert gases. Piezoelectric materials are coupled to a conductor for transmitting alternating current and a conductor for transmitting the resonance frequency of the crystal. The reactive coating is not thick enough to interfere with the vibration of the piezoelectric material but has an effective thickness that provides a useful life for the coating. |
| priorityDate |
1992-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |