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Serving leading biopharmaceutical companies globally:

Daiichi Sankyo
Boehringer Ingelheim

Generated: November 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,105,783

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Summary for Patent: 4,105,783

Title: Therapeutic treatment of dry skin
Abstract:Preventive as well as therapeutic treatment to alleviate the symptoms of disorders characterized by cracking, flaking or scaling of the skin consisting of the topical application of a lotion, cream or ointment containing one or more of the .alpha.- or .beta.-hydroxy acids or .alpha.-keto acids and esters thereof, their amides and their ammonium salts is disclosed. The compounds include free acid, amide and/or ammonium salt forms of citric acid, glycolic acid, glucoronic acid, galacturonic acid, glucuronolactone, gluconolactone, .alpha.-hydroxybutyric acid, .alpha.-hydroxyisobutyric acid, lactic acid, malic acid, mandelic acid, mucic acid, pyruvic acid, methyl pyruvate, ethyl pyruvate, .beta.-phenyllactic acid, .beta.-phenylpyruvic acid, saccharic acid, tartaric acid, tartronic acid, and .beta.-hydroxybutyric acid. The therapeutic composition may include one or more of the compounds present in the total amount of from one to twenty percent. Topical application to affected areas has been found to achieve amelioration of the dry skin.
Inventor(s): Yu; Ruey J. (Philadelphia, PA), Van Scott; Eugene J. (Rydal, PA)
Application Number:05/720,835
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation;

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International Patent Family for Patent: 4,105,783

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia519802► Subscribe
Australia2858377► Subscribe
Belgium858404► Subscribe
Canada1115211► Subscribe
Cyprus1245► Subscribe
Germany2740349► Subscribe
France2363326► Subscribe
France2422398► Subscribe
United Kingdom1589224► Subscribe
Hong Kong46285► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
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Serving leading biopharmaceutical companies globally:

Chinese Patent Office
Boehringer Ingelheim
US Army
Express Scripts

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