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Generated: December 15, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,662,880

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Summary for Patent: 4,662,880

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): Hamel; L. G. (Sunnyvale, CA), Landrau; Felix A. (Miliptas, CA), Wong; Patrick S. L. (Hayward, CA), Guittard; George V. (Cupertino, CA)
Assignee: Alza Corporation (Palo Alto, CA)
Application Number:06/839,384
Patent Claim Types:
see list of patent claims
Dosage form; Delivery;

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International Patent Family for Patent: 4,662,880

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office0237159► Subscribe
Germany3769678► Subscribe
Canada1255563► Subscribe
Australia6740687► Subscribe
Australia601708► Subscribe
Austria63059► Subscribe
Greece3001893► Subscribe
JapanS62221625► Subscribe
JapanH0725676► Subscribe
Mexico9203556► 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:

Queensland Health
Covington
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