BioPharmaceutical Business Intelligence

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Serving leading biopharmaceutical companies globally:

Farmers Insurance
Fish and Richardson
Accenture
US Department of Justice
Express Scripts
Dow
Healthtrust
Queensland Health
Cerilliant
US Army

Generated: January 21, 2018

DrugPatentWatch Database Preview

Details for Patent: 6,620,435

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Which drugs does patent 6,620,435 protect, and when does it expire?

Patent 6,620,435 protects ACZONE and is included in two NDAs.

This patent has thirty-five patent family members in twenty-two countries.
Summary for Patent: 6,620,435
Title: Compositions for topical application of therapeutic agents
Abstract:The present invention generally relates to pharmaceutical compositions that enable control of drug, delivery properties and the development of optimal drug delivery strategies customized for particular drugs and particular diseases. The composition includes a dissolved pharmaceutical that has the capacity to permeate the stratum corneum layer of the epidermis and become available systemically, and a pharmaceutical in a microparticulate state that does not readily cross the stratum corneum of the epidermis. The dissolved and microparticulate pharmaceuticals may be the same or different pharmaceuticals. Methods for the preparation and use of the compositions are also provided. In a preferred embodiment, the invention finds particular use in a formulation for the topical application of dapsone for the treatment of acne. In another preferred embodiment, the invention finds particular use for the treatment of herpes lesions.
Inventor(s): Osborne; David W. (The Woodlands, TX)
Assignee: ViroTex Corporation (The Woodlands, TX)
Application Number:09/236,909
Patent Claim Types:
see list of patent claims
Composition; Formulation; Use; Delivery;

Drugs Protected by US Patent 6,620,435

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Allergan ACZONE dapsone GEL;TOPICAL 021794-001 Jul 7, 2005 AB RX Yes Yes ➤ Subscribe ➤ Subscribe Y ➤ Subscribe
Allergan Inc ACZONE dapsone GEL;TOPICAL 207154-001 Feb 24, 2016 RX Yes Yes ➤ Subscribe ➤ Subscribe Y ➤ Subscribe
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Non-Orange Book US Patents Family Members for Patent 6,620,435

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
5,863,560 Compositions and methods for topical application of therapeutic agents ➤ Subscribe
6,060,085 Compositions and methods for topical application of therapeutic agents ➤ Subscribe
Patent No. Title Estimated Patent Expiration

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International Patents Family Members for US Patent 6,620,435

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 258426 ➤ Subscribe
Austria 353628 ➤ Subscribe
Australia 2002306767 ➤ Subscribe
Australia 4261097 ➤ Subscribe
Australia 737365 ➤ Subscribe
Brazil 0215606 ➤ Subscribe
Canada 2265461 ➤ Subscribe
Canada 2477217 ➤ Subscribe
Canada 2776702 ➤ Subscribe
Canada 2855045 ➤ Subscribe
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving leading biopharmaceutical companies globally:

Colorcon
Boehringer Ingelheim
Farmers Insurance
McKinsey
AstraZeneca
Cantor Fitzgerald
McKesson
Dow
Teva

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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