Topical ophthalmic compositions containing microfine retinoid particles
Patent 4966773 Issued on October 30, 1990. Estimated Expiration Date: 
April 17, 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.
April 17, 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 References 3506760 3828777 3843782 3920810 Polystyrene sulfonate containing opthalmic solutions Ophthalmic solution Treatment of dry eye Treatment of infectious keratoconjunctivitis in animals Tretinoin in a gel vehicle for acne treatment Artificial tear aid Patent #: 4421748 InventorsApplicationNo. 339915 filed on 04/17/1989US Classes:424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/78.04, Ophthalmic preparation514/559, Ring containing514/693, Aldehyde DOAI514/724, C-O-group (e.g., alcohol, alcoholate, etc.) DOAI514/912, OPHTHALMIC514/915Wetting agentExaminersPrimary: Robinson, Douglas W.Assistant: Fay, Zohreh Attorney, Agent or FirmForeign Patent References
International ClassesA61K 009/14A61K 031/13 A61K 031/20 A61K 031/045 AbstractTopical ophthalmic compositions containing microfine particles of one or more retinoids are described. The compositions are useful in the treatment of dry eye syndrome and related ophthalmic surface disorders and as ocular lubricants. A method of treating dry eye syndrome and related ophthalmic surface disorders and a method of providing topical ocular lubrication using these compositions are also described.Other References
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