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Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 6,899,890

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Which drugs does patent 6,899,890 protect, and when does it expire?

Patent 6,899,890 protects CLINDESSE and is included in one NDA. There has been one Paragraph IV challenge on Clindesse.

This patent has twenty-two patent family members in sixteen countries.

Summary for Patent: 6,899,890

Title: Bioadhesive drug delivery system
Abstract:The present invention relates to a novel essentially pH neutral vaginal drug delivery system suitable for modified delivery of a therapeutically active material in the vaginal cavity. The vaginal drug delivery system comprises an essentially pH neutral emulsion having globules having two phases, an internal water soluble phase and an external water-insoluble phase or film, wherein the water-soluble interior phase contains a therapeutically active drug or drugs. One novel aspect of the vaginal drug delivery system is that the internal water soluble phase comprises an acidic buffered phase.
Inventor(s): Kirschner; Mitchell I. (St. Louis, MO), Levinson; R. Saul (Chesterfield, MO), Riley; Thomas C. (Manchester, MO), Hermelin; Marc S. (St. Louis, MO)
Assignee: KV Pharmaceutical Company (St. Louis, MO)
Application Number:10/101,014
Patent Claim Types:
see list of patent claims
Compound; Delivery; Composition; Dosage form; Use;

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Patent Submitted Product Substance Delist Req. Patented / Exclusive Use
Perrigo Pharma IntlCLINDESSEclindamycin phosphateCREAM;VAGINAL050793-001Nov 30, 2004RXYesYes► Subscribe► Subscribe► SubscribeYMETHOD OF TREATING BACTERIAL VAGINOSIS
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International Patent Family for Patent: 6,899,890

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Brazil0202767► Subscribe
Canada2392473► Subscribe
China1444926► Subscribe
China101045034► Subscribe
China102048689► Subscribe
European Patent Office1494630► Subscribe
France2837389► Subscribe
Hungary0203102► Subscribe
ItalyMI20021660► Subscribe
Japan2003286193► 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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Serving leading biopharmaceutical companies globally:

Daiichi Sankyo
Cantor Fitzgerald

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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