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|Title:||Ophthalmic compositions comprising emedastine and methods for their use|
|Abstract:||Topical ophthalmic compositions comprising 1-(2-ethoxyethyl)-2-(4-methyl-1-homopiperazinyl)-benzimidazole and its ophthalmically acceptable acid addition salts have been found to be useful in treating allergic conjunctivitis and related ailments.|
|Inventor(s):||Yanni; John M. (Burleson, TX), Robertson; Stella M. (Arlington, TX), Okumura; Shigetoshi (Nara, JP), Tanaka; Hitoshi (Nara, JP), Saito; Tadayuki (Osaka, JP)|
|Assignee:||Alcon Laboratories, Inc. (Fort Worth, TX)|
Patent Claim Types:|
see list of patent claims
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|Japan||4-329216||Dec 09, 1992|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|Austria||185696||<disabled in preview>|
|Australia||5744294||<disabled in preview>|
|Australia||667613||<disabled in preview>|
| This preview shows a limited data set|
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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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