| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-04 |
| filingDate |
1991-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1992-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c11837797176d9a4262b54034d5c74f4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a623a6534acb7fda09b9704089bcec6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bce0900d984f79f3b0926810e9926a7a |
| publicationDate |
1992-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5144033-A |
| titleOfInvention |
Process for obtaining almost fluorescence-free xanthines |
| abstract |
Process for obtaining almost fluorescence-free xanthines by precipitation of xanthines which still contain an unsubstituted nitrogen atom in the molecule from aqueous-alkaline solution by means of CO 2 . |
| priorityDate |
1990-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |