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Details for Patent: 7,674,479

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Patent 7,674,479 protects FORFIVO XL and is included in one NDA. There has been one Paragraph IV challenge on Forfivo XL.

This patent has one patent family member in one country.

Summary for Patent: 7,674,479

Title:Sustained-release bupropion and bupropion/mecamylamine tablets
Abstract: Sustained-release bupropion hydrochloride pharmaceutical tablets and combination sustained-release bupropion hydrochloride/mecamylamine hydrochloride pharmaceutical tablets are obtained by granulating the bupropion hydrochloride with a hydroxyalkylcelluose, and blending the resulting granules within an extragranular phase composed of a particulate material that provides a sustained-release matrix, and compressing the blend into a tablet form, which then is coated, with a means to provide delayed release, such as with an enteric coating composition. The mecamylamine hydrochloride can be contained in a second granule comprising a hydroxyalkylcellulose.
Inventor(s): Zerbe; Horst G. (Hudson, CA), Paiement; Nadine (Montreal, CA)
Assignee: Intelgenx Corp. (St. Laurent, CA)
Application Number:11/828,287
Patent Claim Types:
see list of patent claims
Formulation; Compound; Dosage form;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 38th percentile
Forward Citations: 1st percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Edgemont Pharms Llc
FORFIVO XL
bupropion hydrochloride
TABLET, EXTENDED RELEASE;ORAL022497-001Nov 10, 2011RXYes7,674,479► subscribeY
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Non-Orange Book Patents for Patent: 7,674,479

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
8,703,191Controlled-release pharmaceutical tablets► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 7,674,479

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
World Intellectual Property Organization (WIPO)2008038155► subscribe
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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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