Sustained release delivery system
January 8, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCross-linked gels of hyaluronic acid and products containing such gels Biocompatible viscoelastic gel slurries, their preparation and use Composition for effecting bone repair Local delivery of fibrinolysis enhancing agents Biodegradable polymer matrices for sustained delivery of local anesthetic agents Long acting narcotic analgesics and antagonists Long acting narcotic analgesics and antagonists Topical drug preparations Drug preparations for treating impotency Patent #: 5952006 InventorsAssigneeApplicationNo. 004631 filed on 01/08/1998US Classes:424/488, Polysaccharides (e.g., cellulose, etc.)424/484, Matrices424/486, Synthetic polymer514/54, Polysaccharide514/777, Carbohydrate or lignin, or derivative514/781, Cellulose or derivative514/944, GEL536/53Oxygen double bonded and nitrogen bonded directly to the same carbonExaminersPrimary: Harrison, Robert H.Attorney, Agent or FirmInternational ClassA61K 009/14AbstractSustained release compositions comprising a drug dispersed within a polymer matrix, methods of producing the same and treatments with the complex.Other References
Field of SearchSOLID SYNTHETIC ORGANIC POLYMER AS DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI)Matrices Synthetic polymer Polysaccharides (e.g., cellulose, etc.) Polysaccharide Cellulose or derivative Carbohydrate or lignin, or derivative Cellulose or derivative GEL Oxygen double bonded and nitrogen bonded directly to the same carbon |
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