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Details for Patent: 5,641,805

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Summary for Patent: 5,641,805

Title: Topical ophthalmic formulations for treating allergic eye diseases
Abstract:Topical ophthalmic formulations of the invention contain as an active ingredient 11-(3-dimethylaminopropylidene)-6,11-dihydrodibenz[b,e]oxepin-2-acetic acid or a pharmaceutically acceptable salt thereof. The formulations are useful for treating allergic eye diseases such as allergic conjunctivitis, vernal conjunctivitis, vernal keratoconjunctivitis, and giant papillary conjunctivitis.
Inventor(s): Hayakawa; Eiji (Susono, JP), Nakakura; Masashi (Shizuoka-ken, JP), Robertson; Stella M. (Arlington, TX), Yanni; John Michael (Burleson, TX)
Assignee: Alcon Laboratories, Inc. (Fort Worth, TX) Kyowa Hakko Kogyo Co. Ltd. (Tokyo, JP)
Application Number:08/469,729
Patent Claim Types:
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Use; Composition; Formulation;

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International Patent Family for Patent: 5,641,805

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria220906► Subscribe
Australia5726196► Subscribe
Australia698854► Subscribe
Canada2195094► Subscribe
China1082367► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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