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Drug patents …
… from Kazakhstan to Kalamazoo
|Title:||Formulations of heterocyclic compounds|
|Abstract:||A topical pharmaceutical formulation for use in treating virus infections of the skin or mucosa and containing 9-(2-hydroxyethoxymethyl) guanine or a salt or ester thereof which comprises a dispersed oil phase and a continuous aqueous phase containing therein water, at least 30% of a polyhydric alcohol (by weight of the formulation) and solublized acyclovir.|
|Inventor(s):||Jones; Trevor M. (Sanderstead, GB2), White; Alan R. (Meopham, GB2)|
|Assignee:||Burroughs Wellcome Co. (Research Triangle Park, NC)|
Patent Claim Types:|
see list of patent claims
|Formulation; Compound; Use;|
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|United Kingdom||8023645||Jul 18, 1980|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
| 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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