Transdermal system
Patent 5120546 Issued on June 9, 1992. Estimated Expiration Date: 
March 7, 2010. 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, 2010. 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-soluble steroid compounds Administration of sex hormones in the form of hydrophilic cyclodextrin derivatives Medical bandage for administering vasodilator drug Sustained-release transdermal delivery preparations Controlled release agent for cetylpyridinium chloride Patent #: 4774329 InventorsAssigneeApplicationNo. 490088 filed on 03/07/1990US Classes:424/449, Transdermal or percutaneous424/448Pressure sensitive adhesive meansExaminersPrimary: Page, Thurman K.Assistant: Phelan, D. Gabrielle Attorney, Agent or FirmInternational ClassA61F 013/00Foreign Application Priority Data1989-12-21 SEAbstractThe present invention concerns a transdermal system with a reservoir layer comprising an active substance, at least part of which is in the form of an inclusion complex formed between a cyclo compound and the active substance. The release rate from the system is controlled by the dissociation of the complex. | |
