Sustained-release formulation containing and amino acid polymer
Patent 4668506 Issued on May 26, 1987. Estimated Expiration Date: 
August 16, 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.
August 16, 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 ReferencesInventorAssigneeApplicationNo. 06/766741 filed on 08/16/1985US Classes:424/429, Contact lens351/160H, Hydrophilic351/160R, Eye contact type351/177, Methods424/427, Ocular424/449, Transdermal or percutaneous424/486, Synthetic polymer514/912, OPHTHALMIC514/913, Glaucoma514/954, Ocular523/106, Contact lens making composition523/107, Silicon-containing organic polymer523/108Polymer of a heterocyclic N-vinyl polymerizable compoundExaminersPrimary: Griffin, Ronald W.Attorney, Agent or FirmInternational ClassesA61K 9/20 (20060101)A61K 9/00 (20060101) AbstractA sustained-release polymeric hydrogel dosage form useful for topical, systemic or transdermal administration of a medicinal agent comprising a cross-linked, polymerized hydrophilic polymer, an amino acid polymer, a cross-linking agent, an optional hydrophobic polymer and said medicinal agent in a therapeutically effective amount. | |
