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Serving leading biopharmaceutical companies globally:

Federal Trade Commission
Covington
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Moodys
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Generated: October 21, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,569,652

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Summary for Patent: 5,569,652

Title: Dihydrospirorenone as an antiandrogen
Abstract:Dihydrospirorenone, ##STR1## preferably together with an estrogen, can be used for the production of a pharmaceutical agent suitable for treatment of hormonal irregularities during premenopause (menstruation stabilization), for hormonal substitution therapy during menopause, for treatment of androgen-induced disorders and/or for contraception.
Inventor(s): Beier; Sybille (Berlin, DE), Elger; Walter (Berlin, DE), Nishino; Yukishige (Berlin, DE), Wiechert; Rudolf (Berlin, DE)
Assignee: Schering Aktiengesellschaft (Berlin, DE)
Application Number:08/162,387
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 5,569,652

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany39 16 112.9May 16, 1989

International Patent Family for Patent: 5,569,652

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
China1047299► Subscribe
German Democratic Republic294417► Subscribe
China1033948► Subscribe
Spain2106728► Subscribe
Germany3916112► Subscribe
Germany59010730► Subscribe
Germany122004000006► Subscribe
Denmark0398460► Subscribe
European Patent Office0398460► Subscribe91065Luxembourg► Subscribe
European Patent Office0398460► SubscribeSPC/GB04/032United Kingdom► 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:

Boehringer Ingelheim
Daiichi Sankyo
Chinese Patent Office
Mallinckrodt
Healthtrust
Covington
Novartis
Harvard Business School
Baxter
Merck

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