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Serving leading biopharmaceutical companies globally:

Harvard Business School
Boehringer Ingelheim
Chinese Patent Office

Generated: October 22, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,386,104

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Summary for Patent: 4,386,104

Title: Process for the treatment of acne
Abstract:There is disclosed a composition for the treatment of acne, hyperpigmentary dermatoses or skin hyperpigmentation which contains dicarboxylic acids containing 7 to 13 carbon atoms or certain derivatives thereof that contain reducing functional group or a salt thereof. There are also disclosed methods for preparing mercapto derivatives of these dicarboxylic acids.
Inventor(s): Nazzaro-Porro; Marcella (Rome, IT)
Application Number:06/278,720
Patent Claim Types:
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Use; Composition; Delivery;

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Foreign Priority and PCT Information for Patent: 4,386,104

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Italy22617 A/77Apr 19, 1977
Italy31471 A/77Dec 30, 1977

International Patent Family for Patent: 4,386,104

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia3502778► Subscribe
Australia524602► Subscribe
Belgium866151► Subscribe
Canada1137873► Subscribe
Switzerland638099► Subscribe
Germany2817133► Subscribe
United Kingdom1603563► Subscribe
Italy1075741► Subscribe
Italy1114950► Subscribe
JapanS53130433► 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:

Boehringer Ingelheim
Argus Health

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