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Generated: July 22, 2017

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Details for Patent: 5,489,436

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Summary for Patent: 5,489,436

Title: Taste mask coatings for preparation of chewable pharmaceutical tablets
Abstract:Chewable tablets are made from a coated medicament wherein the coating comprises a mixture of dimethylaminoethyl methacrylate and neutral methacrylic acid ester and a cellulose ester, e.g. cellulose acetate, cellulose acetate butyrate, cellulose triacetate or a combination thereof and optionally polyvinyl pyrrolidone, and a process for making such tablets and a method of providing taste masking and sustained releasing of medicaments utilizing such coatings.
Inventor(s): Hoy; Michael R. (Sellersville, PA), Roche; Edward J. (Paoli, PA)
Assignee: McNeil-PPC, Inc. (Milltown, NJ)
Application Number:08/166,111
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Process; Use;

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International Patent Family for Patent: 5,489,436

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada2068402► Subscribe
Germany69210124► Subscribe
European Patent Office0523847► Subscribe
Spain2089403► 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 500+ biopharmaceutical companies globally:

Chinese Patent Office
Merck
Mallinckrodt
US Army
Fuji
Fish and Richardson
Cerilliant
Queensland Health
Novartis
Teva

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