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:
Jan. 13, 1998
Filed:
Aug. 02, 1995
Applicant:
Inventor:
Ron Liu, North Chicago, IL (US);
Assignee:
QLT PhotoTherapeutics, Inc., Vancouver, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
424-961 ; 424-96 ; 424-91 ;
Abstract
Liposomal compositions containing green porphyrins as photosensitizers are improved by enhancing the ratio of phospholipid to photosensitizer and by conducting the hydration an sizing of the liposomes in the composition at low temperature.