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Serving leading biopharmaceutical companies globally:

Federal Trade Commission
US Department of Justice
Harvard Business School
QuintilesIMS
McKesson
Cerilliant
Express Scripts
Cipla
Queensland Health
Fish and Richardson

Generated: January 16, 2018

DrugPatentWatch Database Preview

Details for Patent: 7,163,931

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Summary for Patent: 7,163,931
Title:Compositions of estrogen-cyclodextrin complexes
Abstract:Pharmaceutical compositions comprising low doses of sensitive complexes between an estrogen and a cyclodextrin are provided with improved stability. In specific embodiments the composition comprises a complex between ethinyl estradiol and .beta.-cyclodextrin in a granulate preparation and in yet another embodiment the composition comprises a limited amount of polyvinylpyrrolidone since this excipient was found to degrade ethinyl estradiol. Furthermore, a method for improving the stability of an estrogen in a composition and for manufacturing such a stable composition is provided. Essentially, the granulate preparation are manufactured under careful control of the relative humidity.
Inventor(s): Backensfeld; Thomas (Berlin, DE), Heil; Wolfgang (Berlin, DE), Lipp; Ralph (Berlin, DE)
Assignee: Schering Aktiengesellchaft (Berlin, DE)
Application Number:11/102,681
Patent Claim Types:
see list of patent claims
Use; Composition;

Drugs Protected by US Patent 7,163,931

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Bayer Hlthcare BEYAZ drospirenone; ethinyl estradiol; levomefolate calcium TABLET;ORAL 022532-001 Sep 24, 2010 AB RX No No ➤ Subscribe ➤ Subscribe PREVENTION OF PREGNANCY ➤ Subscribe
Bayer Hlthcare SAFYRAL drospirenone; ethinyl estradiol; levomefolate calcium TABLET;ORAL 022574-001 Dec 16, 2010 AB RX Yes Yes ➤ Subscribe ➤ Subscribe PREVENTION OF PREGNANCY ➤ Subscribe
Bayer Hlthcare YAZ drospirenone; ethinyl estradiol TABLET;ORAL 021676-001 Mar 16, 2006 AB RX Yes Yes ➤ Subscribe ➤ Subscribe PREVENTION OF PREGNANCY ➤ Subscribe
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Foreign Priority and PCT Information for Patent: 7,163,931

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
00610135Dec 20, 2000

Non-Orange Book US Patents Family Members for Patent 7,163,931

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
6,958,326 Cyclodextrin-drospirenone inclusion complexes ➤ Subscribe
7,569,557 Compositions of estrogen-cyclodextrin complexes ➤ Subscribe
Patent No. Title Estimated Patent Expiration

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International Patents Family Members for US Patent 7,163,931

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 032205 ➤ Subscribe
Austria 311204 ➤ Subscribe
Australia 1941802 ➤ Subscribe
Australia 2002219418 ➤ Subscribe
Australia 2006225232 ➤ Subscribe
Bulgaria 108002 ➤ Subscribe
Bulgaria 66050 ➤ Subscribe
Brazil 0116417 ➤ Subscribe
Canada 2432151 ➤ Subscribe
Canada 2756207 ➤ Subscribe
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving leading biopharmaceutical companies globally:

US Department of Justice
Citi
Colorcon
Merck
Johnson and Johnson
Fish and Richardson
Dow
Deloitte
Express Scripts

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