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Details for Patent: 8,871,779

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Patent 8,871,779 protects OPANA ER and is included in one NDA. There have been three Paragraph IV challenges on Opana ER.

This patent has eleven patent family members in nine countries.

Summary for Patent: 8,871,779

Title:Process for preparing morphinan-6-one products with low levels of .alpha.,.beta.-unsaturated ketone compounds
Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of .alpha.,.beta.-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound. (A) ##STR00001##
Inventor(s): Buehler; Henry J. (St. Louis, MO), Dummitt; William E. (St. Louis, MO), Mannino; Anthony (Maryland Heights, MO), Aubuchon; Dennis C. (Arnold, MO), Gu; Hong (Oak Park, CA)
Assignee: Mallinckrodt LLC (Hazelwood, MO)
Application Number:11/915,606
Patent Claim Types:
see list of patent claims
Compound; Formulation;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 0th percentile
Forward Citations: 0th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Endo Pharms
OPANA ER
oxymorphone hydrochloride
TABLET, EXTENDED RELEASE;ORAL201655-001Dec 9, 2011RXNo8,871,779► subscribeY
Endo Pharms
OPANA ER
oxymorphone hydrochloride
TABLET, EXTENDED RELEASE;ORAL201655-002Dec 9, 2011RXNo8,871,779► subscribeY
Endo Pharms
OPANA ER
oxymorphone hydrochloride
TABLET, EXTENDED RELEASE;ORAL201655-003Dec 9, 2011RXNo8,871,779► subscribeY
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Foreign Priority and PCT Information for Patent: 8,871,779

PCT Information
PCT FiledMarch 02, 2007PCT Application Number:PCT/US2007/005256
PCT Publication Date:September 13, 2007PCT Publication Number: WO2007/103105

Non-Orange Book Patents for Patent: 8,871,779

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
8,748,611Processes for preparing morphinan-6-one products with low levels of alpha beta-unsaturated compounds► 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: 8,871,779

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Japan2009528366► subscribe
Japan5695296► subscribe
Japan2013173765► 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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