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Details for Patent: 6,379,704

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Which drugs does patent 6,379,704 protect, and when does it expire?

Patent 6,379,704 protects VIVITROL and is included in one NDA.

This patent has fifteen patent family members in eleven countries.

Summary for Patent: 6,379,704

Title:	Method for preparing microparticles having a selected polymer molecular weight
Abstract:	A method for preparing microparticles having a selected polymer molecular weight. The hold time and temperature of a solution containing a nucleophilic compound and a polymer having a starting molecular weight are controlled in order to control the molecular weight of the polymer in the finished microparticle product. In this manner, a selected polymer molecular weight in the finished microparticle product can be achieved from a variety of starting material molecular weights.
Inventor(s):	Wright; Steven G. (Madeira, OH), Rickey; Michael E. (Loveland, OH), Ramstack; J. Michael (Lebanon, OH), Lyons; Shawn L. (Cincinnati, OH), Hotz; Joyce M. (Cincinnati, OH)
Assignee:	Alkermes Controlled Therapeutics Inc. II (Cambridge, MA)
Application Number:	09/870,751
Patent Claim Types: see list of patent claims	Use; Compound;

Drugs Protected by US Patent 6,379,704

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
Alkermes	VIVITROL	naltrexone	FOR SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR	021897-001	Apr 13, 2006		RX	Yes	Yes			Y

Non-Orange Book US Patents Family Members for Patent 6,379,704

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
6,264,987	Method for preparing microparticles having a selected polymer molecular weight
6,534,092	Method for preparing microparticles having a selected polymer molecular weight

International Patents Family Members for US Patent 6,379,704

Country	Document Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Portugal	1282404
Portugal	1925297
Japan	4903344
Japan	2003534268