ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,011, issued on May 13, was assigned to Sun Pharmaceutical Industries Inc. (Princeton, N.J.).
"Methods for photodynamic therapy" was invented by Scott Lundahl (Lexington, Mass.) and Michael Guttadauro (Carlisle, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of enhancing penetration of a topical composition of 5-aminolevulinic acid (ALA) into tissue for photodynamic therapy includes topically applying ALA to a treatment area to be treated with photodynamic therapy. The method further includes, after the ALA is applied to the treatment area, covering the treatment area with a low density polyethylene barrier. The treatment area is cover...