Solid controlled release bioadherent emulsions
Patent 5055303 Issued on October 8, 1991. Estimated Expiration Date: 
January 31, 2009. 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.
January 31, 2009. 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 ReferencesWater and drug delivery system for suppository use Vaginal delivery systems and their methods of preparation and use Medicated suppository Steroidal liposomes Patent #: 4891208 InventorApplicationNo. 304124 filed on 01/31/1989US Classes:424/436, Anal, rectal (e.g., suppositories, etc.)514/966, RECTAL514/967VAGINALExaminersPrimary: Page, Thurman K.Assistant: Hulina, Amy Attorney, Agent or FirmInternational ClassA61K 009/02AbstractSolid delivery systems which at body temperature exhibit controlled release and bioadherence characteristics. These systems are emulsions which are water in oil in nature and whose internal phase is greater than that of the external phase. That is, the internal phase comprises at least 60% of the system. | |
