ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,599, issued on March 24, was assigned to TARIS Biomedical LLC (Lexington, Mass.).

"Methods for treatment of bladder cancer with gemcitabine" was invented by Dennis Giesing (Lee's Summit, Mo.), Heejin Lee (Bedford, Mass.) and Karen Daniel (Newton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Drug delivery devices and methods are provided for administering gemcitabine to a patient in need of treatment of bladder cancer by intravesically administering gemcitabine into the bladder of the patient to achieve a sustained concentration of the gemcitabine in urine in the bladder sufficient to produce a therapeutically effective concentration of the ...