ALEXANDRIA, Va., Dec. 9 -- Acetylon Pharmaceuticals, Boston, Massachusetts, has been assigned a patent (9,833,466) developed by four co-inventors for the "treatment of leukemia with histone deacetylase inhibitors." The co-inventors are Simon S. Jones, Harvard, Massachusetts, Chengyin Min, Brookline, Massachusetts, Min Yang, Newton, Massachusetts, and David Lee Tamang, Watertown, Massachusetts. The abstract states: "Provided herein are combinations comprising an HDAC inhibitor and azacitidine for . . .