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Generated: November 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,810,502

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Summary for Patent: 4,810,502

Title: Pseudoephedrine brompheniramine therapy
Abstract:A dosage form is disclosed for delivering the beneficial drugs pseudoephedrine and brompheniramine to a biological environment of use.
Inventor(s): Ayer; Atul D. (Mt. View, CA), Hamel; Lawrence G. (Sunnyvale, CA)
Assignee: ALZA Corporation (Palo Alto, CA)
Application Number:07/019,989
Patent Claim Types:
see list of patent claims
Dosage form; Delivery;

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International Patent Family for Patent: 4,810,502

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia602020► Subscribe
Australia8093487► Subscribe
Canada1297026► Subscribe
Germany3769307► Subscribe
European Patent Office0281708► Subscribe
Japan2538191► Subscribe
JapanH07215869► Subscribe
JapanH0729924► Subscribe
JapanS63243024► Subscribe
South Korea950001011► 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:

Farmers Insurance
Express Scripts
Harvard Business School
Argus Health

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