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Details for Patent: 7,501,409

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Patent 7,501,409 protects STENDRA and is included in one NDA. There has been one Paragraph IV challenge on Stendra.

This patent has fourteen patent family members in eleven countries.

Summary for Patent: 7,501,409

Title:Preparations for oral administration
Abstract: The present invention provides a preparation for oral administration containing a medicinal substance having cGMP-specific phosphodiesterase inhibitory activity and showing decrease of solubility in the neutral and alkaline regions, wherein an acidic substance is compounded promote the dissolution of the medicinal substance in digestive tract and thus the efficacy can be expressed at the early stage after administration, and which preparation is useful in treatment of erectile dysfunction.
Inventor(s): Murakami; Hideki (Kobe, JP), Takebe; Shoji (Takatsuki, JP)
Assignee: Mitsubishi Tanabe Pharma Corporation (Osaka-shi, JP)
Application Number:10/363,322
Patent Claim Types:
see list of patent claims
Compound; Dosage form;
Patent Metrics:
Source: PatentQuant.com
Field: Organic fine chemistry
Back Citations: 34th percentile
Forward Citations: 0th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
TABLET;ORAL202276-001Apr 27, 2012RXNo7,501,409May 5, 2023Y
TABLET;ORAL202276-002Apr 27, 2012RXNo7,501,409May 5, 2023Y
TABLET;ORAL202276-003Apr 27, 2012RXYes7,501,409May 5, 2023Y
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Foreign Priority and PCT Information for Patent: 7,501,409

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2000-270061Sep 06, 2000
Japan2001-231682Jul 31, 2001
PCT Information
PCT FiledSeptember 06, 2001PCT Application Number:PCT/JP01/07718
PCT Publication Date:March 14, 2002PCT Publication Number: WO02/20058

International Patent Family for Patent: 7,501,409

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
New Zealand524572<disabled in preview>
MexicoPA03001958<disabled in preview>
South Korea100610131<disabled in preview>
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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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