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Serving leading biopharmaceutical companies globally:

US Army
Medtronic
Deloitte
QuintilesIMS
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Queensland Health
Citi
Colorcon
Teva
Cerilliant

Generated: October 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 6,074,666

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Summary for Patent: 6,074,666

Title: Liposome compositions of porphyrin photosensitizers
Abstract:Liposomal pharmaceutical formulations incorporating porphyrin photosensitizers useful for photodynamic therapy or diagnosis of malignant cells. The liposomal formulations comprise a porphyrin photosensitizer, particularly the hydro-mono benzoporphyrins (BPD) having light absorption maxima in the range of 670-780 nanometers, a disaccharide or polysaccharide and one or more phospholipids.
Inventor(s): Desai; Narendra Raghunathji (Danbury, CT), Agha; Bushra J. (Durham, NC), Kale; Kalidas Madhavrao (Harriman, NY)
Assignee: QLT Phototherapeutics, Inc. (CA)
Application Number:08/489,850
Patent Claim Types:
see list of patent claims
Formulation; Composition;

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International Patent Family for Patent: 6,074,666

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany69310014► Subscribe
Spain2100452► Subscribe
European Patent Office0569113► Subscribe
Denmark0569113► Subscribe
Canada2087902► Subscribe
Austria151984► Subscribe
Greece3023906► Subscribe
JapanH06122628► Subscribe
Japan3020372► Subscribe
South Korea970007303► 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:

Colorcon
Mallinckrodt
McKesson
Accenture
Cerilliant
AstraZeneca
Healthtrust
Argus Health
Cipla
Chubb

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