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Serving leading biopharmaceutical companies globally:

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Generated: October 16, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,571,817

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Summary for Patent: 5,571,817

Title: Methods of treating androgenic alopecia with finasteride [17.beta.-N-mono-substituted-carbamoyl-4-aza-5-.alpha.-androst-1-en-ones]
Abstract:17.beta.-N-monosubstituted-carbamoyl-4-5.alpha.-androst-1-en-3-ones of the formula ##STR1## wherein R.sup.1 is selected from hydrogen, methyl and ethyl and R.sup.2 is a branched chain alkyl of from 3-12 carbons, and R', R", R'" are hydrogen or methyl are active as testosterone 5.alpha.-reductase inhibitors and thus are useful topically for treatment of androgenic alopecia.
Inventor(s): Rasmusson; Gary H. (Watchung, NJ), Reynolds; Glenn F. (Westfield, NJ)
Assignee: Merck & Co., Inc. (Rahway, NJ)
Application Number:08/094,815
Patent Claim Types:
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International Patent Family for Patent: 5,571,817

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Greece850483► Subscribe
European Patent Office0285382► Subscribe
European Patent Office0271219► Subscribe
Cyprus1553► Subscribe
Cyprus1807► Subscribe
Germany3573429► Subscribe
Germany3584172► Subscribe
Germany3662194► Subscribe
Germany3780778► Subscribe
Germany3888994► 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:

Cipla
US Army
Daiichi Sankyo
Express Scripts
Citi
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Colorcon
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Covington
Medtronic

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