Details for Patent: 6,656,935

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			Y	Y		TREATMENT OF ERECTILE DYSFUNCTION
Metuchen Pharms	STENDRA	avanafil	TABLET;ORAL	202276-002	Apr 27, 2012		RX	Yes	No			Y	Y		TREATMENT OF ERECTILE DYSFUNCTION
Metuchen Pharms	STENDRA	avanafil	TABLET;ORAL	202276-003	Apr 27, 2012		RX	Yes	Yes			Y	Y		TREATMENT OF ERECTILE DYSFUNCTION

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

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Japan	11-261852	Sep 16, 1999
Japan	2000-130371	Apr 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
Austria	358670
Australia	2001241142
Australia	4114201