ALEXANDRIA, Va., April 22 -- Acceleron Pharma, Cambridge, Massachusetts, and Dyax, Burlington, Massachusetts, have been assigned a patent (9,624,301) developed by seven co-inventors for "polynucleotides encoding an actriib antibody." The co-inventors are Ravindra Kumar, Acton, Massachusetts, Asya Grinberg, Lexington, Massachusetts, Monique Davies, Harpswell, Maine, Diana Martik, Cambridge, Massachusetts, Janja Cosic, Arlington, Massachusetts, Rachel Kent, Boxborough, Massachusetts, and David Buc . . .