Sustained release microsphere preparation containing antipsychotic drug
Patent 5871778 Issued on February 16, 1999. Estimated Expiration Date: 
March 7, 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.
March 7, 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 ReferencesPolylactic acid microspheres and process for producing the same Patent #: 4994281 InventorsAssigneeApplicationNo. 812544 filed on 03/07/1997US Classes:424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/426, Errodable, resorbable, or dissolving424/497Containing solid synthetic polymersExaminersPrimary: Page, Thurman K.Assistant: Howard, Sharon Attorney, Agent or FirmInternational ClassA61K 009/50Foreign Application Priority Data1992-11-17 JPAbstractA sustained release microsphere preparation which is produced by including a hydrophobic antipsychotic drug such as bromperidol, haloperidol or the like into a base composed of a high molecular weight polymer having in vivo histocompatibility such as polylactic acid, poly(lactic-co-glycolic)acid or the like, and a process for the production thereof. | |
