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Details for Patent: 7,985,418

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Patent 7,985,418 protects RENVELA and is included in one NDA. There have been two Paragraph IV challenges on Renvela.

This patent has fourteen patent family members in nine countries.

Summary for Patent: 7,985,418

Title:Aliphatic amine polymer salts for tableting
Abstract: The tablets, compositions and methods of the present invention, comprising a carbonate salt of an aliphatic amine polymer and s monovalent anion can prevent or ameliorate acidosis, in particular acidosis in patients with renal disease. The tablets and compositions of the present invention maintain a disintegration time of no greater than 30 minutes at 37.degree. C. and at pH of at least 1 for a period of at least ten weeks at 60.degree. C. Furthermore, the tablets are stable for extended periods of time without the need for specialized storage conditions.
Inventor(s): Bhagat; Hitesh R. (Wayland, MA), Goldberg; Jeffrey M. (Framingham, MA), Harianawala; Abizer I. (Lexington, MA), Brenner; Louis (Brookline, MA)
Assignee: Genzyme Corporation (Cambridge, MA)
Application Number:11/262,291
Patent Claim Types:
see list of patent claims
Dosage form; Composition;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 150th 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
Genzyme
RENVELA
sevelamer carbonate
TABLET;ORAL022127-001Oct 19, 2007RXYes7,985,418► subscribeY
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Non-Orange Book Patents for Patent: 7,985,418

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
8,808,738Aliphatic amine polymer salts for tableting► 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: 7,985,418

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Mexico2007004939► subscribe
Japan5758945► subscribe
Japan2013139480► 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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