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Details for Patent: 5,756,541

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Patent 5,756,541 protects VISUDYNE and is included in one NDA.

This patent has thirty-one patent family members in twenty-two countries.

Summary for Patent: 5,756,541

Title: Vision through photodynamic therapy of the eye
Abstract:Photodynamic therapy of conditions of the eye, especially those conditions characterized by unwanted neovasculature, such as age-related macular degeneration, results in enhanced visual acuity for treated subjects,
Inventor(s): Strong; H. Andrew (North Van., CA), Levy; Julia (Vancouver, CA), Huber; Gustav (Zurich, CH), Fsadni; Mario (Buelach, CH)
Assignee: QLT Phototherapeutics Inc (Vancouver, CA)
Application Number:08/613,420
Patent Claim Types:
see list of patent claims
Formulation; Compound; Use;

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Valeant Luxembourg
VISUDYNE
verteporfin
INJECTABLE;INJECTION021119-001Apr 12, 2000RXYes5,756,541► subscribe USE OF THE DRUG PRODUCT IN PHOTODYNAMIC THERAPEUTIC PROTOCOLS FOR THE TREATMENT OF AGE-RELATED MACULAR DEGENERATION AND RELATED CONDITIONS INVOLVING UNWANTED NEOVASCULATURE IN THE EYE
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Non-Orange Book Patents for Patent: 5,756,541

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
8,239,978Vision through photodynamic therapy of the eye► subscribe
5,910,510 Vision through photodynamic therapy of the eye► subscribe
6,548,542 Vision through photodynamic therapy of the eye► 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: 5,756,541

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina004422► subscribe
Argentina042931► subscribe
Austria301473► 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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