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Details for Patent: 6,641,843

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Patent 6,641,843 protects ZIAGEN and is included in one NDA. There have been two Paragraph IV challenges on Ziagen. There are eight tentative approvals for the compound protected by this patent. Additional details are available via the generic ingredient links below.

Protection for ZIAGEN has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

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

Summary for Patent: 6,641,843

Title: Pharmaceutical compositions
Abstract:The present invention relates to pharmaceutical compostions of (1S,4R)-cis-4-[2-amino-6-cyclopropylamino}-9H-purin-9-yl]-2-cyclopentene-1 -methanol (1592U89).
Inventor(s): Brooks; Nikki Thoennes (Glen Allen, VA)
Assignee: SmithKline Beecham Corporation (Philadelphia, PA)
Application Number:09/601,671
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Process; Formulation;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 13th 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
Viiv Hlthcare
abacavir sulfate
SOLUTION;ORAL020978-001Dec 17, 1998RXYes6,641,843*PEDAug 4, 2019Y
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Foreign Priority and PCT Information for Patent: 6,641,843

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9802472Feb 06, 1998
PCT Information
PCT FiledFebruary 04, 1999PCT Application Number:PCT/EP99/00663
PCT Publication Date:August 12, 1999PCT Publication Number: WO99/39691

International Patent Family for Patent: 6,641,843

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Slovenia1051156► subscribe
Serbia49953► subscribe
Yugoslavia48200► 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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