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|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)|
Patent Claim Types:|
see list of patent claims
|Composition; Compound; Dosage form; Process; Use;|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|Canada||2068402||<disabled in preview>|
|Germany||69210124||<disabled in preview>|
|European Patent Office||0523847||<disabled in preview>|
| This preview shows a limited data set|
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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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