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Serving leading biopharmaceutical companies globally:

Farmers Insurance
Argus Health
Harvard Business School
Cantor Fitzgerald
Boehringer Ingelheim
Federal Trade Commission

Generated: December 15, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,045,317

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Summary for Patent: 5,045,317

Title: Enhancing the cutaneous penetration of pharmacologically active agents
Abstract:Method and compositions for enhancing the cutaneous penetration of topically or transdermally delivered pharmacologically active agent. 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)
Application Number:07/566,567
Patent Claim Types:
see list of patent claims
Composition; Compound; Use;

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International Patent Family for Patent: 5,045,317

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria115553► Subscribe
Canada1331861► Subscribe
Germany3852437► Subscribe
European Patent Office0299758► Subscribe
Spain2065912► Subscribe
Greece3015410► Subscribe
Ireland66710► Subscribe
Ireland882155► Subscribe
Israel87133► Subscribe
New Zealand225416► 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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Serving leading biopharmaceutical companies globally:

Federal Trade Commission
Boehringer Ingelheim
Daiichi Sankyo
Chinese Patent Office

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