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Covington
Fuji
UBS
AstraZeneca
Novartis
US Department of Justice
McKinsey
Queensland Health
Medtronic
Fish and Richardson

Generated: February 22, 2018

DrugPatentWatch Database Preview

Details for Patent: 6,709,446

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Summary for Patent: 6,709,446
Title: Illuminator for photodynamic therapy and diagnosis which produces substantially uniform intensity visible light
Abstract:An apparatus and method for photodynamic therapy or photodynamic diagnosis using an illuminator comprising a plurality of light sources generally conforming to a contoured surface and irradiating the contoured surface with substantially uniform intensity visible light. The light sources may comprise generally U-shaped fluorescent tubes that are driven by electronic ballasts. Adjustment of the ballast voltage controls the output power of the tubes. The tubes are supported by a sheet-metal or plastic housing and are covered by a polycarbonate shield which directs cooling airflow within the unit and prevents glass-patient contact in the event of tube breakage. An aluminum reflector located behind the tubes increases both the output irradiance and the uniformity of the output distribution. The spacing of the U-shaped tubes is varied to increase the output at the edges of the illuminator to make the output more uniform. Also, different portions of the tubes are cooled at different amounts, to improve uniformity. A light sensor monitors output from the U-shaped tubes to provide a signal for adjusting the output from the tubes.
Inventor(s): Lundahl; Scott (Lexington, MA), Kozodoy; Rebecca (Randolph, MA), Carroll; Ronald (Hingham, MA), Leppelmeier; Elton (Highland Height, OH)
Assignee: Dusa Pharmaceuticals, Inc. (Toronto, CA)
Application Number:09/774,084
Patent Claim Types:
see list of patent claims
Use;

Drugs Protected by US Patent 6,709,446

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Dusa LEVULAN aminolevulinic acid hydrochloride SOLUTION;TOPICAL 020965-001 Dec 3, 1999 RX Yes Yes ➤ Try a Free Trial ➤ Try a Free Trial TREATMENT OF NON-HYPERKERATOTIC ACTINIC KERATOSES OF FACE AND SCALP ➤ Try a Free Trial
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Non-Orange Book US Patents Family Members for Patent 6,709,446

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
6,223,071 Illuminator for photodynamic therapy and diagnosis which produces substantially uniform intensity visible light ➤ Try a Free Trial
8,030,836 Illuminator for photodynamic therapy ➤ Try a Free Trial
8,216,289 Illuminator for photodynamic therapy ➤ Try a Free Trial
9,723,991 Illuminator for photodynamic therapy ➤ Try a Free Trial
8,758,418 Illuminator for photodynamic therapy ➤ Try a Free Trial
7,190,109 Illuminator for photodynamic therapy ➤ Try a Free Trial
7,723,910 Method of photodynamically diagnosing or treating a contoured surface ➤ Try a Free Trial
Patent No. Title Estimated Patent Expiration

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International Patents Family Members for US Patent 6,709,446

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Turkey 200003233 ➤ Try a Free Trial
Portugal 1075315 ➤ Try a Free Trial
Poland 192844 ➤ Try a Free Trial
Poland 344106 ➤ Try a Free Trial
New Zealand 507891 ➤ Try a Free Trial
Norway 328315 ➤ Try a Free Trial
Norway 20005342 ➤ Try a Free Trial
Japan 4837826 ➤ Try a Free Trial
Japan 2002513660 ➤ Try a Free Trial
Israel 139397 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Harvard Business School
Fish and Richardson
AstraZeneca
Cerilliant
Fuji
Chubb
Federal Trade Commission
McKesson
Medtronic

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