| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7503f2fa81a73988d9219717e7c7aee1 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D409-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D407-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-92 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D409-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D407-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-92 |
| filingDate |
2000-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71174aa0305cd8590181dc532c9e5d56 |
| publicationDate |
2002-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6478989-B1 |
| titleOfInvention |
Aromatic substituted naphthopyrans |
| abstract |
Described are photochromic 2H-naphtho[1,2-b]pyrans characterized by having an aromatic substituent in the 5 position. The aromatic group at 5-position of the naphthopyran is a substituted or unsubstituted aryl group or other substituted or unsubstituted aromatic group. These compounds may be represented by the following graphic formula:Also described are polymeric organic host materials that contain or that are coated with such compounds. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101619016-B |
| priorityDate |
1997-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |