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Details for Patent: 5,792,753

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Patent 5,792,753 protects SOLARAZE and is included in one NDA. There has been one Paragraph IV challenge on Solaraze. There are five tentative approvals for the compound protected by this patent. Additional details are available via the generic ingredient links below.

This patent has one hundred and eighty-seven patent family members in thirty-three countries.

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;

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Fougera Pharms
SOLARAZE
diclofenac sodium
GEL;TOPICAL021005-001Oct 16, 2000RXYes5,792,753► subscribe
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Non-Orange Book Patents for Patent: 5,792,753

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
5,834,444 Hyaluronic acid and salts thereof inhibit arterial restenosis► subscribe
5,942,498 Formulations containing hyaluronic acid► subscribe
5,910,489 Topical composition containing hyaluronic acid and NSAIDS► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 5,792,753

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
African Regional IP Organization (ARIPO)175► subscribe
African Regional IP Organization (ARIPO)448► subscribe
African Regional IP Organization (ARIPO)475► 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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