Provectus announced that the United States Patent and Trademark Office (USPTO) has allowed US patent application 16/688,319, “Composition and Method for Treating Hematologic Cancers,” covering the use of PV-10, a formulation of Provectus' immunogenic-small molecule and pharmaceutical-grade rose bengal sodium (RBS), for the treatment of hematologic diseases. In vivo data of mice with acute lymphoblastic leukemia receiving oral PV-10 showed increased survival compared to controls. This allowed patent application will be the first Provectus patent award in hematology from the USPTO.