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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
Queensland Health
Boehringer Ingelheim
Farmers Insurance

Generated: October 22, 2017

DrugPatentWatch Database Preview

Details for Patent: 6,423,342

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Summary for Patent: 6,423,342

Title: Process for the preparation of a solid pharmaceutical dosage form
Abstract:A process for the preparation of a solid pharmaceutical dosage form comprising a carrier and, as active ingredient, a compound which exists, in solution, in an equilibrium between a free acid or free base form and a salt form, and for which there is a difference in volatility between the free acid or free base form and the salt form. The process includes the steps of solidifying a mixture of the compound and carrier in a solvent, and subsequently removing the solvent from the solidified mixture. A pH modifier is added to the mixture prior to solidification to shift the equilibrium to favor the less volatile form of the active ingredient.
Inventor(s): Jordan; Andrew William (Swindon, GB), Saunders; Joy Elaine (Faringdon, GB), Kearney; Patrick (Swindon, GB)
Assignee: R. P. Scherer Corporation (St. Petersburg, FL)
Application Number:09/305,080
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Process;

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Foreign Priority and PCT Information for Patent: 6,423,342

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9504201Mar 02, 1995

International Patent Family for Patent: 6,423,342

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria203397► Subscribe
Australia4884596► Subscribe
Germany69614096► Subscribe
Denmark0814770► Subscribe
European Patent Office0814770► Subscribe
Spain2160232► Subscribe
United Kingdom9504201► Subscribe
Greece3036516► Subscribe
Japan2969002► Subscribe
JapanH10506408► 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:

Boehringer Ingelheim
Johnson and Johnson
Argus Health

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