Dosage units for controlled release of active material
April 11, 2005. 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 3096248 3317394 3538214 3887699 Controlled release of medicaments using polymers from glycolic acid Tablets coated with aqueous resin dispersions Constant-rate eluting tablet and method of producing same Controlled release tablet Sustained release propranolol system Biodegradable, implantable drug delivery depots, and method for preparing and using the same InventorAssigneeApplicationNo. 06/722077 filed on 04/11/1985US Classes:424/497, Containing solid synthetic polymers424/473With porous, perforated, apertured, or sieved layer (e.g., dialyzing layer, microporous layer, etc.)ExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassesA61K 9/20 (20060101)A61K 9/28 (20060101) A61K 9/24 (20060101) Foreign Application Priority Data1984-04-11 EPAbstractA drug delivery system in the form of dosage units for controlled release of active material comprising a core and a coating layer enclosing said core.The coating material contains a microporous synthetic thermoplastic polymer and is compressed into a suitable coating layer enclosing the core with the aid of relatively low compression forces.Other References
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