| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M31-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-4163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-2009 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N25-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-416
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23P1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M31-00 |
| filingDate |
1984-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1990-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0140538-B1 |
| titleOfInvention |
Controlled release system |
| abstract |
A device for the controlled release of an active material into an aqueous medium comprises a porous sintered body of a water soluble glass (11). The pores of the body are filled with a composition (12) consisting wholly or partially of an active material. The device may be provided with a low solubility coating (13). On immersion in an aqueous medium the glass (11) dissolves to become a sponge-like structure having a plurality of convoluted capillaries and from which the active material is released. |
| priorityDate |
1983-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |