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Details for Patent: 6,495,164

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Patent 6,495,164 protects BYDUREON, BYDUREON PEN, and VIVITROL, and is included in two NDAs.

This patent has thirty-eight patent family members in twenty-six countries.

Summary for Patent: 6,495,164

Title: Preparation of injectable suspensions having improved injectability
Abstract:Injectable compositions having improved injectability. The injectable compositions include microparticles suspended in an aqueous injection vehicle having a viscosity of at least 20 cp at 20.degree. C. The increased viscosity of the injection vehicle that constitutes the fluid phase of the suspension significantly reduces in vivo injectability failures. The injectable compositions can be made by mixing dry microparticles with an aqueous injection vehicle to form a suspension, and then mixing the suspension with a viscosity enhancing agent to increase the viscosity of the fluid phase of the suspension to the desired level for improved injectability.
Inventor(s): Ramstack; J. Michael (Lebanon, OH), Riley; M. Gary I. (Cambridge, MA), Zale; Stephen E. (Hopkinton, MA), Hotz; Joyce M. (Cincinnati, OH), Johnson; Olufunmi L. (Cambridge, MA)
Assignee: Alkermes Controlled Therapeutics, Inc. I (Cambridge, MA)
Application Number:09/577,875
Patent Claim Types:
see list of patent claims
Composition; Process; Use;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 49th percentile
Forward Citations: 2nd percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Astrazeneca Ab
BYDUREON
exenatide synthetic
FOR SUSPENSION, EXTENDED RELEASE;SUBCUTANEOUS022200-001Jan 27, 2012RXYes6,495,164► subscribeY
Astrazeneca Ab
BYDUREON PEN
exenatide synthetic
FOR SUSPENSION, EXTENDED RELEASE;SUBCUTANEOUS022200-002Feb 28, 2014RXYes6,495,164► subscribeY
Alkermes
VIVITROL
naltrexone
FOR SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR021897-001Apr 13, 2006RXYes6,495,164► subscribeY
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Non-Orange Book Patents for Patent: 6,495,164

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
7,799,345Preparation of injectable suspensions having improved injectability► subscribe
6,667,061 Preparation of injectable suspensions having improved injectability► subscribe
7,371,406Preparation of injectable suspensions having improved injectability► 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: 6,495,164

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria363891► subscribe
Australia2001255463► subscribe
Australia5546301► 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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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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