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Details for Patent: 5,194,247

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Summary for Patent: 5,194,247

Title: Synergistic skin depigmentation composition
Abstract:There is disclosed a synergistic composition for skin depigmentation with reduced irritation which does not contain a corticosteroid comprising 4-hydroxyanisole and a retinoid, such as all-trans retinoic acid, 11-cis,13-cis-12-hydroxymethyl retinoic acid .delta.-lactone or (N-acetyl-4-aminophenyl) retinoate, in a pharmaceutically acceptable topical vehicle.
Inventor(s): Nair; Xina (E. Amherst, NY), Tramposch; Kenneth M. (Williamsville, NY)
Application Number:07/554,904
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent PDF download available with subscription

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International Patent Family for Patent: 5,194,247

Country Document Number Publication Date Supplementary Protection Certificate SPC Country SPC Expiration
Spain2063217Jan 01, 1995
Denmark0421110May 24, 1994
European Patent Office0421110Apr 10, 1991
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Preferred citation:

Friedman, Y. Location of pharmaceutical innovation: 2000–2009 Nature Reviews Drug Discovery 9, 835–836 (2010).

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