The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2006
Filed:
Mar. 06, 2003
Ravindra K. Pandey, Williamsville, NY (US);
Thomas J. Dougherty, Grand Island, NY (US);
Ravindra K. Pandey, Williamsville, NY (US);
Thomas J. Dougherty, Grand Island, NY (US);
Health Research, Inc., Buffalo, NY (US);
Abstract
Pyropheophorbide compounds are injected into a host and accumulate in tumor tissue to a higher degree than surrounding normal tissues. When the pyropheophorbide compounds are exposed to a particular wavelength of light the compounds become cytotoxic and destroy the tumor or diseased tissue without causing irreversible normal tissue damage. The pyropheophorbide compounds have shown improved results as compared to drugs currently used in photodynamic therapy. Further, they absorb light further in the red, optimizing tissue penetration mad are retained in the skin for short time periods relative to other drugs used in photodynamic therapy.