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Details for Patent: 8,597,684

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Patent 8,597,684 protects DYANAVEL XR and is included in one NDA.

This patent has nineteen patent family members in fourteen countries.

Summary for Patent: 8,597,684

Title:Modified release formulations containing drug-ion exchange resin complexes
Abstract: An aqueous liquid suspension containing a coated drug-ion exchange resin complex comprising a core composed of an amphetamine complexed with a pharmaceutically acceptable ion-exchange resin and an uncoated amphetamine-ion exchange resin complex is provided. The coated amphetamine-ion exchange resin complex is in admixture with a polymer to form a matrix. The coating is a polyvinyl acetate polymer and a plasticizer. Methods of making the coated complex and the liquid suspension are described.
Inventor(s): Mehta; Ketan (Cranbury, NJ), Tu; Yu-Hsing (West Windsor, NJ)
Assignee: Tris Pharma, Inc. (Monmouth Junction, NJ)
Application Number:13/746,654
Patent Claim Types:
see list of patent claims
Composition; Process;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 0th percentile
Forward Citations: 10th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Tris Pharma Inc
DYANAVEL XR
amphetamine
SUSPENSION, EXTENDED RELEASE;ORAL208147-001Oct 19, 2015RXYes8,597,684► subscribeY
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Non-Orange Book Patents for Patent: 8,597,684

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
8,883,217Modified release formulations containing drug-ion exchange resin complexes► subscribe
8,337,890Modified release formulations containing drug-ion exchange resin complexes► subscribe
8,062,667Modified release formulations containing drug-ion exchange resin complexes► 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: 8,597,684

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria536867► subscribe
Australia2007227569► subscribe
BrazilPI0709606► 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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