Patent References 2799241 3845770 3865108 3916889 Air embolus aspirator Apparatus for tracking moving workpiece by a laser beam Process for forming outlet passageways in pills using a laser Therapeutic device for osmotically dosing at controlled rate Osmotic system with distribution zone for dispensing beneficial agent Device using hydrophilic polymer for delivering drug to biological environment InventorsAssigneeApplicationNo. 187621 filed on 04/28/1988US Classes:424/473, With porous, perforated, apertured, or sieved layer (e.g., dialyzing layer, microporous layer, etc.)424/468Sustained or differential release typeExaminersPrimary: Page, Thurman K.Assistant: Horne, Leon R. Attorney, Agent or FirmInternational ClassA61K 009/24AbstractA dosage form is disclosed comprising a coat that surrounds a drug. The coat comprises a subcoat and an overcoat thermally annealed to provide a single unit coat around the drug. F | |