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Generated: October 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,434,171

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Summary for Patent: 5,434,171

Title: Preparation of 3,4,4-trisubstituted-piperidinyl-N-alkylcarboxylates and intermediates
Abstract:This invention relates to a process for preparing certain 3,4,4-trisubstituted-piperidinyl-N-alkylcarboxylates, intermediates, and congeners. Finally, the invention provides new 3,4,4-trisubstituted-piperidinyl-N-alkylcarboxylates with formulations and methods for using the compounds.
Inventor(s): Frank; Scott A. (Lebanon, IN), Prather; Douglas E. (Brownsburg, IN), Ward; Jeffrey A. (Indianapolis, IN), Werner; John A. (Indianapolis, IN)
Assignee: Eli Lilly and Company (Indianapolis, IN)
Application Number:08/164,074
Patent Claim Types:
see list of patent claims
Compound; Use; Composition; Formulation; Dosage form; Process;

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International Patent Family for Patent: 5,434,171

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Finland106860► Subscribe
China1121387► Subscribe
Colombia4290427► Subscribe
Czech Republic9402992► Subscribe
Czech Republic290559► Subscribe
Germany69427017► Subscribe
Denmark0657428► Subscribe
European Patent Office0657428► Subscribe
European Patent Office0984004► Subscribe
European Patent Office1607387► 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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