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Generated: October 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,608,075

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Summary for Patent: 5,608,075

Title: Polymorphs of losartan and the process for the preparation of form II of losartan
Abstract:Polymorphic forms of Losartan (Formula I) ##STR1## and a process for the preparation of Form II of Losartan. Losartan is known to be useful in the treatment of hypertension.
Inventor(s): Campbell, Jr.; Gordon C. (Wilmington, DE), Dwivedi; Anil M. (Newark, DE), Levorse; Dorothy A. (South Amboy, NJ), McCauley; James A. (Bellemeade, NJ), Raghavan; Krishnaswamy S. (Wilmington, DE)
Assignee: Merck & Co., Inc. (Rahway, NJ) E. I. Du Pont de Nemours & Company (Wilmington, DE) The DuPont Merck Pharmaceutical Company (Wilmington, DE)
Application Number:08/371,937
Patent Claim Types:
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International Patent Family for Patent: 5,608,075

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia1405895► Subscribe
Australia685898► Subscribe
Canada2179067► Subscribe
European Patent Office0736021► Subscribe
JapanH09507075► Subscribe
World Intellectual Property Organization (WIPO)9517396► 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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