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Serving leading biopharmaceutical companies globally:

Express Scripts
US Department of Justice
Argus Health
Daiichi Sankyo
Boehringer Ingelheim

Generated: November 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,792,753

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Summary for Patent: 5,792,753

Title: Compositions comprising hyaluronic acid and prostaglandin-synthesis-inhibiting drugs
Abstract:A topically administrable pharmaceutical composition is disclosed which comprises a therapeutically effective amount of a drug which inhibits prostaglandin synthesis, and an amount of a form of hyaluronic acid sufficient to transport the composition through the skin into the epidermis or dermis where the composition remains until discharged via the lymphatic system, wherein (a) the drug is 1-5% by weight of the composition, and (b) the form of hyaluronic acid is 1-3% by weight of the composition, has a molecular weight greater than about 150,000 daltons and less than 750,000 daltons, and is selected from the group consisting of hyaluronic acid and salts thereof.
Inventor(s): Falk; Rudolf Edgar (Toronto, CA), Asculai; Samuel Simon (Toronto, CA)
Assignee: Hyal Pharmaceutical Corporation (Mississauga, CA)
Application Number:08/018,508
Patent Claim Types:
see list of patent claims
Composition; Dosage form;

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International Patent Family for Patent: 5,792,753

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Hungary9500857► Subscribe
Hungary225963► Subscribe
HungaryT70440► Subscribe
Hungary9303283► Subscribe
Hungary220758► Subscribe
HungaryT64699► Subscribe
Hong Kong44797► Subscribe
Hong Kong35397► Subscribe
Greece3036164► Subscribe
Greece3021171► 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
Harvard Business School
Daiichi Sankyo
Express Scripts

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