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Last Updated: November 18, 2019

DrugPatentWatch Database Preview

Details for Patent: 6,656,935

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Which drugs does patent 6,656,935 protect, and when does it expire?

Patent 6,656,935 protects STENDRA and is included in one NDA.

This patent has forty-one patent family members in twenty-five countries.

Summary for Patent: 6,656,935
Title: Aromatic nitrogen-containing 6-membered cyclic compounds
Abstract:An aromatic nitrogen-containing 6-membered cyclic compound of the formula (I): ##STR1## wherein Ring A is a substituted or unsubstituted nitrogen-containing heterocyclic group; R.sup.1 is a substituted or unsubstituted lower alkyl group, --NH--Q--R.sup.3 (R.sup.3 is a substituted or unsubstituted nitrogen containing heterocyclic group, and Q is a lower alkylene group or a single bond), or --NH--R.sup.4 (R.sup.4 is a substituted or unsubstituted cycloalkyl group); R.sup.2 is a substituted or unsubstituted aryl group; one of Y and Z is .dbd.CH--, and the other is .dbd.N--, or a pharmaceutically acceptable salt thereof, these compounds exhibiting excellent selective PDE V inhibitory activities, and hence, being useful in the prophylaxis or treatment of penile erectile dysfunction, etc.
Inventor(s): Yamada; Koichiro (Saitama-ken, JP), Matsuki; Kenji (Saitama-ken, JP), Omori; Kenji (Saitama, JP), Kikkawa; Kohei (Kawaguchi, JP)
Assignee: Tanabe Seiyaku Co., Ltd. (Osaka, JP)
Application Number:09/925,892
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,656,935
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

Drugs Protected by US Patent 6,656,935

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Metuchen Pharms STENDRA avanafil TABLET;ORAL 202276-001 Apr 27, 2012 RX Yes No   Start Trial   Start Trial Y Y TREATMENT OF ERECTILE DYSFUNCTION   Start Trial
Metuchen Pharms STENDRA avanafil TABLET;ORAL 202276-002 Apr 27, 2012 RX Yes No   Start Trial   Start Trial Y Y TREATMENT OF ERECTILE DYSFUNCTION   Start Trial
Metuchen Pharms STENDRA avanafil TABLET;ORAL 202276-003 Apr 27, 2012 RX Yes Yes   Start Trial   Start Trial Y Y TREATMENT OF ERECTILE DYSFUNCTION   Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 6,656,935

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan11-261852Sep 16, 1999
Japan2000-130371Apr 28, 2000

International Family Members for US Patent 6,656,935

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 025668   Start Trial
Austria 358670   Start Trial
Australia 2001241142   Start Trial
Australia 4114201   Start Trial
Australia 7311800   Start Trial
Australia 767558   Start Trial
Bulgaria 106566   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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McKesson
Baxter
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Johnson and Johnson

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