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Serving leading biopharmaceutical companies globally:

Merck
Citi
Argus Health
Queensland Health
AstraZeneca
QuintilesIMS
Healthtrust
Moodys
Chinese Patent Office
UBS

Generated: February 20, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,721,275

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Summary for Patent: 5,721,275
Title: Slow release vehicles for minimizing skin irritancy of topical compositions
Abstract:Staple, aqueous gel vehicles are provided for the topical application to the skin of irritating active ingredients such as retinoids, particularly tretinoin, with slow release of the active ingredient and minimal irritancy to the skin. The vehicles include a gelling agent effective to form a gel and hold the active ingredient in the aqueous medium for slow release on the skin, and an effective amount of an antioxidant to retard decomposition of the active ingredient. The vehicles and formulations are preferably aqueous emulsions which contain a solubilizing agent for the generally non-water soluble active ingredients, as well as usually an emulsifying agent and/or surfactant. Chelating agents, emollients, preservatives and other adjuvants and additives may also be included in the vehicles and formulations.
Inventor(s): Bazzano; Gail S. (Metairie, LA)
Assignee:
Application Number:07/856,157
Patent Claim Types:
see list of patent claims
Composition; Use;

Drugs Protected by US Patent 5,721,275

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
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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Foreign Priority and PCT Information for Patent: 5,721,275

PCT Information
PCT FiledJune 07, 1990PCT Application Number:PCT/US90/03219
PCT Publication Date:December 13, 1990PCT Publication Number: WO90/14833

International Patents Family Members for US Patent 5,721,275

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2063576 ➤ Try a Free Trial
Germany 69029804 ➤ Try a Free Trial
European Patent Office 0481007 ➤ Try a Free Trial
World Intellectual Property Organization (WIPO) 9014833 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Chubb
Cantor Fitzgerald
McKesson
Citi
Johnson and Johnson
Argus Health
Medtronic
Moodys
Harvard Business School

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