Delivery systems for pharmaceutical or therapeutic actives
November 8, 2008. 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 References 2795579 Cosmetic compositions for the skin containing a chitosan derivative Process for preparing porous shaped material of acylated chitin derivative Amino-polysaccharides and copolymers thereof for contact lenses and ophthalmic compositions Derivatives of chitins, chitosans and other polysaccharides Vision correction lens made from an aminopolysaccharide compound or an ether or ester thereof Dry free-flowing water-soluble complexes of chitosan Proteolytic, dry biopolymeric composition for treatment of wounds, and method of using same Chitosan-glycerol-water gel Long-term sustained-release preparation InventorsAssigneeApplicationNo. 268871 filed on 11/08/1988US Classes:514/777, Carbohydrate or lignin, or derivative424/443, Web, sheet or filament bases; compositions of bandages; or dressings with incorporated medicaments424/444, Resorbable by the body424/449, Transdermal or percutaneous514/55, Chitin or derivative514/944, GEL514/945, FOAM514/947, Topical application514/953, SHAPED FORMS ADAPTED FOR NONINGESTIBLE USE OTHER THAN SUPPOSITORY TYPE (E.G., FILMS, INSERTS, ETC.)514/969OINTMENT OR SALVE BASEExaminersPrimary: Griffin, Ronald W.Attorney, Agent or FirmForeign Patent References
International ClassesA61K 009/02A61K 009/06 A61K 009/12 A61K 031/715 AbstractDelivery systems containing at least one aminopolysaccharide derivative are provided for the delivery of pharmaceutical or therapeutic actives to a desired topical or mucous membrane site in a subject, and wherein upon delivery, the systems provides a biocompatible, substantive, gas permeable, film from which actives are available at the designated site.Field of SearchChitin or derivativeTopical application SHAPED FORMS ADAPTED FOR NONINGESTIBLE USE OTHER THAN SUPPOSITORY TYPE (E.G., FILMS, INSERTS, ETC.) Carbohydrate or lignin, or derivative GEL FOAM OINTMENT OR SALVE BASE Chitin or derivative FROM CARBOHYDRATE OR DERIVATIVE AS A REACTANT Ethylenically unsaturated reactant Unsaturated carboxylic acid or derivative reactant Web, sheet or filament bases; compositions of bandages; or dressings with incorporated medicaments Resorbable by the body Transdermal or percutaneous | |
