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|Title:||Method and compositions for enhancing the cutaneous penetration of pharmacologically active agents|
|Abstract:||Method and compositions for enhancing the cutaneous penetration of topically or transdermally delivered pharmacologically active agents. The compositions include various urethane compounds as permeation enhancers, the urethane compounds formed from reaction of a monomeric organic diisocyanate with a hydroxy- or hydroxy/alkoxy-terminated linear alkylene or polyalkylene glycol or polyether.|
|Inventor(s):||Chess; Samuel (Newport Beach, CA), McCullough; Jerry L. (Irvine, CA), Weinstein; Gerald D. (Irvine, CA)|
|Assignee:||The Regents of the University of California (Alameda, CA)|
Patent Claim Types:|
see list of patent claims
|Composition; Compound; Use;|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|Austria||115553||<disabled in preview>|
|Canada||1331861||<disabled in preview>|
|Germany||3852437||<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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