Sustained release ionic conjugate
Patent 6911218 Issued on June 28, 2005. Estimated Expiration Date: 
April 22, 2017. 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.
April 22, 2017. 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 References 3773919 Continuous release pharmaceutical compositions Copolymers of lactic acid and tartaric acid, the production and the use thereof Prolonged release microcapsules Prolonged release microcapsules Prolonged release microcapsules Patent #: 5814342 InventorsAssigneeApplicationNo. 09171740 filed on 04/22/1997US Classes:424/501, Contains solid synthetic resin424/502, Contains waxes, higher fatty acids, higher fatty alcohols264/4.1, Liquid encapsulation utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome)264/4.6, Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.)427/213.3, Solid encapsulation process utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome)427/213.36, Solid-walled microcapsule formed from preformed synthetic polymer528/361, From ether, metal alcoholate, or alcohol group-containing carboxylic acid; or from a derivative of a carboxylic acid which derivative contains an ether, metal alcoholate, or alcohol group424/493Containing polysaccharides (e.g., sugars)ExaminersPrimary: Azpuru, CarlosAttorney, Agent or FirmForeign Patent References
International ClassesA61K009/50B01J013/02 B05D007/00 B32B015/02 AbstractA method of spherifying a sustained release ionic conjugate which contains a free carboxyl group-containing biodegradable polymer and a free amino group-containing drug which are ionically bonded to each other.Field of SearchContains solid synthetic resinContains waxes, higher fatty acids, higher fatty alcohols Errodable, resorbable, or dissolving Particulate form (e.g., powders, granules, beads, microcapsules, and pellets) Containing solid synthetic polymers Contains proteins or derivative or polysaccharides or derivative Liquid encapsulation utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome) Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.) Solid encapsulation process utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome) Solid-walled microcapsule formed from preformed synthetic polymer Solid-walled microcapsule from synthetic polymer Solid synthetic organic polymer Peptide containing (e.g., protein, peptones, fibrinogen, etc.) DOAI LHRH LIKE SOMATOSTATIN OR DERIVATIVES | |
