| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e660e90987a0cdb57cf9cb071c2d419 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-23 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F-
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D405-02 |
| filingDate |
2003-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b9550c328584e9628f4232151a109c8 |
| publicationDate |
2013-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2578589-A1 |
| titleOfInvention |
Oxygen-containing heterocyclic fused naphthopyrans having photochromic properties |
| abstract |
This invention relates to novel naphthopyrans of the following formula:n nThese compounds (I) have interesting photochromic properties. Also related to this invention are host materials that contain such naphthopyran compounds, and articles such as ophthalmic lenses or other plastic transparencies that incorporate the naphthopyran compounds. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103897343-A |
| priorityDate |
2002-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |